Building a Reliable Truck For Towing
About this episode
Reliability for long-distance towing takes center stage, with the hosts framing it as “getting from A to B” and sharing real-world breakdown stories. One Cummins-oriented truck suffered a lifter tick, then a harsh downshift with an incorrect gear ratio, and even limp-mode trouble that required multiple transmission repairs—until a gauge pack helped them manage the situation. They also break down towing build priorities: intake/air-temp control, exhaust braking, staged tuning, and why “you don't want to over complicate the setup.”
Anthony and Chris got to thinking after the AMSOIL UCC event, you see these beast trucks competing, but no one talks about what they used to get them there. Diesel trucks modified and created to be towing machines. The boys wanted to discuss building a reliable, bad ass tow rig. Wheter you are towing boats, campers, your race car or truck, the boys put together mods they think make an ultimate tow rig. Enjoy!
powder coated transmissions
"we've changed our turbo carts, we had powder coated transmissions. All the turbos on the stand had powder coated covers in like ceramicotic exhaust housing."
Powder coating is a tough paint-like coating that gets baked on. Putting it on a transmission helps protect it from rust and wear, and it also makes the parts look nicer.
Powder coating is a dry finishing process where a protective coating is applied as a powder and then cured with heat. On transmissions, it’s used to improve corrosion resistance and make the unit look cleaner and more durable in harsh show or work conditions.
ceramicotic exhaust housing
"All the turbos on the stand had powder coated covers in like ceramicotic exhaust housing. So being able to build an empire of sorts, like in terms of booths, it was very cool"
A turbo has a hot part called the exhaust housing. Ceramic coating helps it survive extreme heat and can keep the turbo bay from getting as hot around it.
The exhaust housing is the turbo’s hot-side casing that surrounds the turbine. A ceramic coating (here described as “ceramicotic”) is used to handle high temperatures, reduce heat soak, and often improve resistance to corrosion and discoloration.
powder coated covers
"All the turbos on the stand had powder coated covers in like ceramicotic exhaust housing. So being able to build an empire of sorts, like in terms of booths, it was very cool"
These are metal covers that get a baked-on protective coating. It helps them resist rust and damage, especially around hot turbo parts.
Powder-coated covers are protective housings finished with powder coating for durability and corrosion resistance. In this context, they’re on turbo-related hardware, helping the setup stay presentable and protected from heat and grime.
10 speed Allison
"He beat Dimitri and the highest horsepower to through like a 10 speed Allison, 1300 and change 1300 and change, I think a little bit more."
Allison is a company that makes automatic transmissions for heavy trucks. A “10-speed Allison” means the truck’s automatic gearbox has 10 different gear ratios, which can help it pull hard and stay in the right engine speed range.
“Allison” refers to Allison Transmission, a well-known maker of heavy-duty automatic transmissions. A “10-speed Allison” is a 10-gear automatic used in many diesel trucks, and its gear spread helps keep the engine in its power/torque band while towing.
aftermarket
"And I'm not saying the aftermarket is caught up to what the 10 speeds capability is, but it's, it's moments like that."
The aftermarket is the market for non-factory parts—like upgrades or replacement components made by other companies. Here, it’s about people making parts to help fix or improve the 10-speed transmission.
The aftermarket is the ecosystem of companies that sell replacement parts and performance upgrades not made by the original vehicle manufacturer. In this context, it means parts are being developed to support 10-speed Allison transmissions as their capability and popularity grow.
valve body issues
"Reliability because again, 10 speeds have, people don't think they're very reliable. There's a lot of issues, valve body issues, people are starting to make parts for them."
In an automatic transmission, the valve body is like the control center that directs transmission fluid to make the gears shift. If there are “valve body issues,” the transmission may shift poorly or not work as reliably, particularly under heavy use.
The valve body is the hydraulic control section inside an automatic transmission that routes fluid to the clutches and bands for each gear. “Valve body issues” means problems with those internal valves/solenoids, which can cause harsh shifting, slipping, or reliability concerns—especially when the transmission is pushed hard.
built 10 speeds
"doing built 10 speeds. Um, I wanted to talk to you because this whole past week, it was about racing, burnouts, sled pulling, bringing your biggest baddest shit to the show."
That phrase means the truck’s 10-speed automatic transmission has been strengthened or rebuilt. People do this so it can handle the extra stress of towing without wearing out as fast.
“Built 10 speeds” refers to a 10-speed automatic transmission that’s been modified or rebuilt for stronger performance and durability. In towing circles, a “built” transmission typically means upgraded internal parts to handle higher torque and heat than the stock setup.
burnouts
"Um, I wanted to talk to you because this whole past week, it was about racing, burnouts, sled pulling, bringing your biggest baddest shit to the show. And most guys are traveling across the country."
A burnout is when you spin the tires on purpose to heat them up and show off. It’s common at truck events and races.
Burnouts are deliberate tire-spinning maneuvers used to heat the tires and demonstrate traction or power. In diesel truck culture, they’re often part of show-and-race events and can also be used to test how well a truck hooks up.
sled pulling
"Um, I wanted to talk to you because this whole past week, it was about racing, burnouts, sled pulling, bringing your biggest baddest shit to the show. And most guys are traveling across the country."
Sled pulling is a competition where trucks drag a heavy sled. It puts a lot of strain on the truck, so the build has to be tough.
Sled pulling is a motorsport where a vehicle drags a weighted sled over a track. It heavily stresses the drivetrain and cooling system, which is why reliability and heat management matter for towing-style builds.
tow rig
"So like my big thing is I'm walking through the pits and while everybody's out racing, all the tow rigs are there, all the goosenecks are unloaded, people had all their RVs, the you know, stock 450s, you're seeing just regular trucks, maybe sudden airbags on them."
A tow rig is basically a truck that’s set up to pull trailers. It usually has upgrades so it can tow longer distances without overheating or wearing out.
A “tow rig” is a truck setup specifically configured for towing—often with upgraded suspension, brakes, cooling, and transmission tuning. In this context, it contrasts with the race trucks that are out competing.
goose neck
"So like my big thing is I'm walking through the pits and while everybody's out racing, all the tow rigs are there, all the goosenecks are unloaded, people had all their RVs, the you know, stock 450s, you're seeing just regular trucks, maybe sudden airbags on them."
A gooseneck is a trailer hitch where the trailer’s front sits higher and connects through a ball in the truck bed. It’s common for heavier towing because it helps the trailer track more steadily.
A gooseneck trailer is a hitch style where the trailer’s front section rises above the truck bed and connects via a ball in the bed. This hitch design is common for heavy towing because it improves stability and weight distribution.
air bags
"the you know, stock 450s, you're seeing just regular trucks, maybe sudden airbags on them. So a kind of question I have for you and we will both talk about it is what does"
In trucks, “airbags” usually means air springs that help support the truck when you’re towing. They keep the truck from squatting too much and can make the ride steadier.
Airbags in truck towing usually means air suspension helpers—often called air springs—that support the rear of the truck when a trailer is loaded. They help maintain ride height and reduce sag, which can improve stability and reduce stress on suspension components.
reliability
"maybe sudden airbags on them. So a kind of question I have for you and we will both talk about it is what does reliability mean to you? I think that that's a loaded question, depending on your age and experience."
Here, “reliability” means the truck can make the whole trip without problems. For towing, that usually includes not overheating and not stressing the transmission and engine too much.
In this towing context, “reliability” means the truck can complete a long trip without failures—especially under sustained load. It’s not just about avoiding breakdowns; it also includes managing heat, drivetrain stress, and component wear over hours of towing.
LML mods
"We had a podcast about like LML mods and being reliable with that. I mean, I'm more or less kind of want to go to, if I told you, hey, Chris, because you're bringing the boats, you've got your boat and you've got to travel 12 hours."
“LML mods” means changes people make to a specific diesel engine (the Duramax LML). Enthusiasts do it to improve how the truck runs, especially when towing, and to address reliability concerns.
“LML mods” refers to modifications for the GM Duramax LML diesel engine (commonly discussed in the context of reliability and performance tuning). The “mods” part implies changes like tuning, fueling, and supporting hardware intended to improve how the engine behaves under load.
intake tuning
"Is there any add-ons that you would do like airbags if they don't come with it from the factory? Are you going to do intake tuning? I mean, a lot of these are no brainers because of the business we're in."
Intake tuning means adjusting the truck’s settings to work with an intake change. The goal is usually to help the engine breathe better and run more correctly, especially when towing.
Intake tuning is adjusting engine calibration (often via a tuner) to match changes to the air intake system. For diesel trucks, it’s commonly discussed alongside fueling and boost control so the engine gets the right air-fuel balance under towing loads.
Cummins
"But there's still things you can do to be preactive. [712.0s] At some point, shit's going to happen, regardless of what truck you pick. [714.8s] So as far as platform goes, you know, I think any of the listeners or long term [720.7s] listeners, I'm very Cummins oriented."
Cummins is a company that makes diesel engines. The host is saying they prefer trucks with Cummins engines because they trust them more for towing and long trips.
Cummins is a major diesel-engine manufacturer, and in the truck world it’s especially associated with heavy-duty diesel powerplants. When the host says they’re “Cummins oriented,” they mean they prefer trucks built around Cummins diesel engines for towing reliability.
lifter tick
"And three weeks prior to me leaving, the guys in the shop had to do one [753.9s] of the Hamilton flat-tapid conversions because I was having a lifter tick. [757.9s] Oh yeah, that was noisy. [759.3s] And drove the truck around town for a week or two, no issues, everything was good."
“Lifter tick” is a noisy tapping sound from inside the engine. It usually means the parts that operate the valves aren’t working as smoothly as they should, so it’s a sign you may need to inspect or fix the engine.
A “lifter tick” is a tapping or ticking noise from the engine’s valve train, often linked to hydraulic lifters not pumping up properly or to wear/clearance issues. In diesel engines, it’s a common symptom that something in the valvetrain lubrication or components may need attention before it becomes a bigger failure.
Hamilton flat-tapid conversions
"And three weeks prior to me leaving, the guys in the shop had to do one [753.9s] of the Hamilton flat-tapid conversions because I was having a lifter tick. [757.9s] Oh yeah, that was noisy. [759.3s] And drove the truck around town for a week or two, no issues, everything was good."
This sounds like a specific modification done by an engine shop (Hamilton) to fix a recurring engine noise problem. In this case, it was done because the truck had a lifter tick, and after the work the engine seemed to run normally for a while.
“Hamilton flat-tapid conversions” appears to be a specific engine modification package from an engine builder (Hamilton) aimed at changing components in the valvetrain/valve-lifter area. The context suggests it was used to address the host’s lifter tick, implying the conversion improves how the lifters/valve train behave under load.
transmission downshifts
"This car is next to me. [773.8s] I go to pass it and transmission downshifts, bangs incorrect six gear ratio. [780.5s] I didn't hear about this. [781.3s] Yeah, yeah."
A downshift is when the truck changes to a lower gear so the engine can spin faster. The host is saying that during a pass the transmission shifted in a way that didn’t feel right and likely selected the wrong gear.
A transmission downshift is when an automatic transmission selects a lower gear ratio to increase engine RPM for acceleration. The host describes it as happening during a pass and then immediately “bangs” with an incorrect ratio, which points to a shift-control or gear-selection problem.
incorrect six gear ratio
"I go to pass it and transmission downshifts, bangs incorrect six gear ratio. [780.5s] I didn't hear about this. [781.3s] Yeah, yeah. [781.6s] Oh shit."
This means the transmission likely picked the wrong gear when it tried to shift into 6th. When that happens, the shift can feel really rough and can point to a transmission problem that needs diagnosing.
“Incorrect six gear ratio” suggests the transmission commanded or selected the wrong gear ratio for the situation—essentially a mismatch between expected and actual gearing. That can cause harsh engagement (“bangs”) and may indicate a control issue, sensor problem, or internal transmission wear.
cleared the code
"So cleared the code, limped the truck there, loaded up two big blocks in the back of the button, the back of the truck, you know, 1,600, 1,800 pounds for the two. And I limped the thing home."
Modern trucks store error codes when something goes wrong. “Clearing the code” means resetting that stored error so the warning light may go away, but the problem might still be there.
“Cleared the code” refers to resetting a stored diagnostic trouble code (DTC) in the truck’s computer after the fault is addressed or temporarily bypassed. This can turn off the check-engine light, but the underlying issue may still be present if it hasn’t been fixed.
limped the truck
"So cleared the code, limped the truck there, loaded up two big blocks in the back of the button, the back of the truck, you know, 1,600, 1,800 pounds for the two. And I limped the thing home."
When a truck goes into “limp mode,” it reduces power so it won’t get worse. It’s basically a safety mode that lets you drive to get it checked.
“Limp mode” is a protective strategy where the truck limits power and sometimes shifts differently so it can keep running despite a fault. It’s commonly triggered by engine/transmission sensors or emissions-related issues and is meant to get you to a safer place for repair.
operating temp
"So what I say when doing a travel like that is you definitely want to get some miles on the truck, get up to operating temp prior, make sure there's no leaks, no nothing like that."
Operating temperature is the normal heat level the truck is designed to run at. Warming up first helps the fluids work correctly and reduces the chance of overheating or weird behavior while towing.
“Operating temp” is the normal temperature range where the truck’s engine and drivetrain are designed to run. Getting there before towing helps ensure proper fluid viscosity, cooling performance, and stable transmission behavior under load.
diagnostic tool
"But what saved me on that particular trip is a gauge pack. Oh yeah. And having a diagnostic tool at my disposal."
A diagnostic tool is a scanner that can read the truck’s error codes and sometimes live data. It helps you figure out what’s wrong instead of guessing.
A diagnostic tool (often an OBD-II scanner or manufacturer-grade interface) reads fault codes and live sensor data from the truck’s computer. Having one on hand helps you pinpoint whether a problem is engine-related, transmission-related, or something else before continuing a trip.
onboard diagnostics
"I don't think I'd have a preference at this point of saying, Oh, I would choose a Ford over a GM over a Ram. I think it's more of what kind of onboard diagnostics are going to help me navigate an issue if I run into one."
Onboard diagnostics are the truck’s built-in way of noticing problems and saving error codes. Better diagnostics make it easier to diagnose issues quickly when you’re on the road.
Onboard diagnostics (OBD) are the truck computer’s built-in systems for detecting malfunctions and storing diagnostic trouble codes. The quality of onboard diagnostics varies by manufacturer and can affect how easily you can identify the cause of a towing-related issue.
OEM
"Anytime he works on like my truck or our cars, he's like, dude, OEM is best. It's like, yeah, okay."
OEM stands for “original equipment manufacturer.” It means parts that are made to match what the truck originally came with from the factory.
OEM means “original equipment manufacturer.” In truck building, it usually refers to using factory-spec parts and components (or parts that match the factory design) rather than aftermarket upgrades, because they’re engineered to fit and function correctly.
turning radius
"but you know, you go tow and you, you have a big wheel and tire that you don't get full turning radius on that becomes an inconvenience at some sort, but you're ripping up your wheel well plastics, your fender flares for the factory."
Turning radius is how tight you can turn when you’re driving slowly. Bigger tires and wheels can make it harder to turn sharply because they may hit or rub parts of the truck.
Turning radius is the tightest circle a vehicle can make at low speed. With towing trucks, larger wheels/tires and wider setups can reduce effective clearance, making tight parking, U-turns, and maneuvering in event lots more difficult.
wheel well plastics
"but you're ripping up your wheel well plastics, your fender flares for the factory."
Wheel well plastics are the plastic covers around the tire area. If your tires are bigger or sit differently, they can rub those covers and tear them up.
Wheel well plastics are the trim pieces and splash guards around the tire opening. When tires are oversized or suspension/fitment is changed, these plastics can get scraped or torn, which is common when towing setups rub during turns or under load.
fender flares
"but you're ripping up your wheel well plastics, your fender flares for the factory."
Fender flares are the extensions around the wheel area. They help keep dirt and rocks off the body, and they can get scraped or damaged if your tires rub.
Fender flares are the extended trim pieces over the wheel opening. They help cover tire tread and protect against debris, but they can be damaged or require re-fitting if wheel/tire size and alignment cause rubbing.
UCC
"And I feel like that, that question that you're asking is loaded, because when you go to an event like UCC and you have a lot of trucks out in the parking lot..."
UCC is an event where people bring trucks to park and show them off. The speaker is using it as an example of what kinds of trucks you’ll see there.
UCC is referenced as an event where trucks are parked and displayed. In this context, it’s being used to illustrate how towing-focused trucks and modified trucks show up side-by-side.
Goosers
"with Goosers that are there for, you know, the, the competitors, you have, like your, your early era truck, right?"
“Goosers” sounds like slang for a certain kind of towing truck setup. The speaker mentions it while talking about competitors, but they don’t explain exactly what it means here.
“Goosers” appears to be event slang for a specific type of towing setup or truck configuration. Based on the surrounding context (“competitors” and towing trucks), it likely refers to trucks built for towing with a particular hitch/trailer setup, but the exact definition isn’t provided in this excerpt.
01 to 10 era
"there's always a far amount of fair amount of trucks there that are in the 01 to 10 era, which, you know, you're going to modify those"
“01 to 10 era” means trucks from around the early 2000s through 2010. The speaker is using it like a category to talk about different styles of truck builds.
“01 to 10 era” is a shorthand for trucks from roughly the 2001–2010 model years. The speaker is grouping trucks by generation/era to discuss how people modify them and what kinds of builds show up at events.
lift pump
"So, you know, I think let, let's cut out, you know, some trucks need lift pumps, some trucks don't, right?"
A lift pump is a small fuel pump that helps send diesel from the tank to the engine. When you tow, the engine may need more fuel than usual, and the lift pump helps keep that fuel supply steady.
A lift pump is an auxiliary fuel pump used to move diesel from the tank toward the engine at the right pressure and flow. On some trucks it helps prevent fuel starvation during hard towing or steep fuel-demand changes, which can protect drivability and performance.
fuel delivery
"I think that that's a standard for, you know, fuel delivery, but you know, what are some actual towing modifications..."
Fuel delivery is how the truck gets diesel to the engine. When you tow, the engine needs more fuel, so keeping that supply consistent matters.
Fuel delivery refers to how diesel is supplied to the engine—pressure, flow rate, and timing under load. For towing, consistent fuel delivery helps maintain power and reduces the risk of performance issues when the engine is working hard.
intake air temp control
"what are some actual towing modifications that are going to help with intake air temp control?"
Intake air temp control means keeping the air going into the engine from getting too hot. Hot air can make the engine less efficient and can increase stress when you’re towing.
Intake air temperature (IAT) control is about keeping the air entering the engine cool enough to maintain efficient combustion. During towing, heat soak can raise IATs, which can reduce power and increase stress on turbo and engine components.
gauges
"and then gauges, like I, I think like those are kind of the main things I would look at."
Gauges are extra meters that show important temperatures and pressures. When towing, they help you catch overheating or excessive stress before it becomes damage.
Gauges in a towing setup typically refer to monitoring instruments like boost, exhaust gas temperature (EGT), and transmission temperature. They help the driver see how hard the engine and drivetrain are working so they can avoid overheating and protect components.
Fords
"Again, I'm very big into the Fords. I just drove down to Florida and back into Ford, granted I was unloaded..."
Ford is the truck brand the speaker prefers. They’re talking about how the truck feels to drive and how it’s set up for towing.
Ford is a major U.S. truck brand, and the speaker is describing personal preference based on driving feel and windshield visibility. In towing discussions, Ford’s diesel trucks are often compared on throttle response, exhaust braking behavior, and how they handle heat under load.
new Rams
"I have nothing against, you know, I don't have a lot of time in the new GMs or the new Rams, but that's always been my preference."
Ram is a truck brand. The speaker is comparing Ram to other brands for towing features and how the truck feels under load.
Ram is a truck brand (part of Stellantis) known for its heavy-duty pickups used for towing. The speaker later emphasizes exhaust braking and responsiveness, which are common comparison points among Ford, GM, and Ram diesel trucks.
new GMs
"I have nothing against, you know, I don't have a lot of time in the new GMs or the new Rams..."
GM is the company behind brands like Chevrolet and GMC. The speaker is basically saying they haven’t driven the newest GM trucks much.
GM refers to General Motors, another major U.S. truck maker. The speaker is saying they haven’t spent much time in the newest GM trucks, which frames the later comparison about tuning and towing features.
exhaust brake
"if you can get something that's just tuned to be a little bit more responsive, you've got a good quality exhaust break..."
An exhaust brake helps slow the truck using the engine and exhaust system. When you tow downhill, it can help you control speed and reduce how hard you have to press the regular brakes.
An exhaust brake is a diesel braking feature that uses the engine’s exhaust system to create resistance and slow the truck without relying as much on the service brakes. For towing, it helps control speed on descents and can reduce brake wear and heat buildup.
cold air intercooler pipes
"run a factory air box, maybe do a cold air intercooler pipes really don't mean much."
Intercooler pipes are the tubes that move compressed air from the turbo through the intercooler and back to the engine. Better piping is sometimes claimed to keep that air cooler, which can help the engine run more efficiently.
Intercooler pipes connect the turbo to the intercooler and then route cooled air back to the intake. “Cold air” pipes are often marketed as reducing heat soak and improving charge-air temperature control, which can help performance and consistency under load.
high flow intercooler pipes
"And I think like being more toe oriented, you know, I do see where, you know, high flow intercooler pipes do add a value with, um, you know, better intake air temp control, especially paired with an air intake, the turbocharger, you know,"
High flow intercooler pipes are bigger/less restrictive tubes for the turbo’s compressed air. The idea is that the air moves more easily and stays cooler, which can help the truck perform more consistently when towing.
High flow intercooler pipes are larger or lower-restriction charge-air plumbing intended to reduce pressure drop between the turbo, intercooler, and intake. The host argues they can improve intake air temperature control, especially when paired with an air intake, which can affect how much boost the engine needs to make the same power.
air intake
"better intake air temp control, especially paired with an air intake, the turbocharger, you know, a lot of times you explain to customers like, okay, well, if you do an air intake"
An air intake is the path that air takes to get into the engine, usually with a filter. Upgrading it can change how much air the engine gets and how hot that air is, which matters when you’re towing.
An air intake is the system that supplies air to the engine, often including a filter and ducting. In diesel tuning discussions, intake changes are usually evaluated alongside turbo and intercooler modifications because they can influence airflow, intake air temperature, and how the engine responds under boost.
boost
"okay, well, if you do an air intake and an intercooler tubes, the truck might actually make a pound or two less boost while I'm not looking to lose power."
Boost is the extra pressure a turbo creates to push more air into the engine. More boost usually means more airflow, which can translate to more power—up to the engine’s limits.
Boost is the increased air pressure produced by a turbocharger (or supercharger) to force more air into the engine. In tuning, boost targets are used to estimate how hard the turbo is working and how much airflow the engine is getting under load.
restriction
"Well, you're not losing power. You're creating less restrictions for that air to travel."
Restrictions are anything that makes it harder for air to move through the truck’s intake system. If you reduce those bottlenecks, the engine can breathe easier and may not need as much turbo pressure to get the same result.
In this context, restrictions are flow limitations in the intake/intercooler plumbing that increase pressure drop. Reducing restrictions can improve the system’s efficiency so the engine can make the desired airflow with less boost pressure.
system becomes more efficient
"Therefore the system becomes more efficient. Yeah."
When they say the system is more efficient, they mean the truck gets the air it needs with less “wasted” effort. So it can make power without needing as much turbo boost.
“More efficient” here means the intake/intercooler setup delivers the needed airflow with less wasted effort (less pressure loss and better charge-air conditions). That can translate to similar or better power without requiring as much boost pressure.
different elevations
"he's hooked up to 10, 12, 15,000 pounds and he's going across, you know, the country and he's going into different elevations where he's hitting different, uh, grades."
Different elevations mean the air pressure changes. At higher elevations there’s less oxygen, so a turbo diesel has to compensate to keep power and efficiency while towing.
Different elevations change atmospheric pressure, which affects how much oxygen is available for combustion. For turbo diesels towing across the country, that means boost and fueling strategies often need to compensate for thinner air on climbs and passes.
EGTs
"And take air temp gets hot, EGTs get hot, coolant temp gets hot. It's a domino effect."
EGTs means exhaust gas temperatures—how hot the gases get in the exhaust. When you tow hard, EGTs can climb, and keeping them under control helps protect the engine and turbo from overheating.
EGTs (exhaust gas temperatures) are how hot the exhaust is after combustion. EGTs are a key towing metric because sustained high exhaust temperatures can stress turbo components, exhaust manifolds, and overall engine durability.
coolant temp
"And take air temp gets hot, EGTs get hot, coolant temp gets hot. It's a domino effect."
Coolant temp is how hot the engine’s cooling liquid gets. If it runs too hot while towing, the engine is under more heat stress and can wear faster.
Coolant temperature is how hot the engine’s liquid cooling system runs. If coolant temp rises during towing, it usually means the engine is generating more heat than the cooling system can shed, which can accelerate wear.
domino effect
"It's a domino effect. It's everything."
A “domino effect” here means one problem makes other temperatures go up too. For example, if intake air gets hot, the exhaust and engine cooling temps tend to rise as well.
In towing/engine monitoring, a “domino effect” describes how one overheating or heat-related change triggers other temperature increases across the system. The idea is that intake air, exhaust, and coolant temperatures influence each other under load.
hot shot trucks
"And none of these, you know, hot shot trucks or tow trucks, like nobody's got ranch hands on the front."
Hot shot trucks are work trucks that haul smaller loads for businesses, usually on tight schedules. They’re typically set up for hauling efficiency and speed, not necessarily for the same front-end mods you see on some enthusiast tow builds.
Hot shot trucks are small-to-medium commercial trucks used to haul time-sensitive loads, often with frequent stops and heavy throttle use. Because they’re working vehicles, their setups and front-end hardware choices can differ from dedicated towing builds.
tow trucks
"And none of these, you know, hot shot trucks or tow trucks, like nobody's got ranch hands on the front."
Tow trucks are the vehicles used to pull or move cars that can’t drive. They’re usually built for recovery work, so their setup isn’t always the same as a truck built specifically for towing a trailer.
Tow trucks are commercial vehicles designed to recover and transport disabled cars or heavy equipment. Their typical duty cycles and front-end configurations are often different from dedicated towing rigs built for long-distance hauling.
bumpers or cow pushers
"Um, most people don't have big bumpers or cow pushers on the front. Um, guys are typically aren't getting stupid with the wheels and tires."
Cow pushers are tough front guards meant to protect the truck’s front end. They can change how the truck looks and sometimes how it breathes/handles, which can matter if you’re trying to keep temps down while towing.
Cow pushers are heavy-duty front protection bars/guards (often associated with “bull bar” style setups) used to protect the front end during off-road or work use. They can affect airflow and add weight, which matters when you’re trying to keep temperatures and driveline stress under control.
37s
"I mean, there, and there's going to be the listeners out there that are like, Oh, you know, I tow with 37s on a six inch lift."
“37s” means 37-inch tires. Bigger tires can make the truck work harder, which can hurt fuel economy and increase stress when you’re towing.
“37s” is shorthand for 37-inch tires, a common enthusiast size on lifted trucks. Bigger tires change gearing and rolling resistance, which can affect fuel economy, driveline load, and how hot the engine runs while towing.
six-inch lift
"Oh, you know, I tow with 37s on a six inch lift. Yes."
A six-inch lift means the truck is raised higher than stock by about six inches. That usually lets you fit bigger tires, but it can also make towing harder on the truck.
A six-inch lift refers to raising the truck’s suspension by about six inches. Lifts typically allow larger tires, but they can also change ride geometry and increase driveline and aerodynamic load during towing.
re-gearing
"However, if the truck is a dedicated to her, unless you're regearing the truck and you have this whole theme of the truck that you're building, most guys"
Regearing is changing the axle’s gear ratio so the truck’s RPM and pulling feel match your setup. When you run bigger tires, regearing can help the engine pull better and not lug or over-rev.
Regearing means changing the axle gear ratio (typically by swapping gears in the differential) to alter how the truck accelerates and how it runs at highway speed. For towing, regearing can help keep engine RPM in a better range and reduce strain when you’re using larger tires.
drive line
"They're looking for mileage. They're not looking to put a ton of wear and tear on the drive line."
The drive line is the set of parts that sends power from the transmission to the wheels. If you tow hard or run bigger tires, those parts can take more stress and wear out faster.
The drive line is the drivetrain hardware that transfers power from the transmission to the axles (including components like the driveshaft and related parts). Larger tires and higher loads can increase stress on the drivetrain, so builders often choose tire/wheel sizes to manage wear.
custom offsets
"The odds of them having a stock or closest stock tire size is much higher than your mudgrap 37s that you bought off custom offsets and you financed."
Wheel offset is how far the wheel mounting surface sits inboard or outboard relative to the wheel’s centerline. “Custom offsets” usually means changing that offset to fit larger tires or achieve a specific stance, which can affect tire clearance, scrub radius, and steering feel.
LML turbocharger
"he was our test bed for our SDR for the LML turbocharger and he's had competitors, turbos."
On GM diesel trucks, the LML is the engine code. A turbocharger is a device that uses exhaust gases to force more air into the engine, which helps it pull harder—especially when towing.
The “LML” refers to the Duramax LML diesel engine family used in certain GM trucks, and a “turbocharger” is the forced-induction unit that uses exhaust energy to spin a turbine and compress intake air. Upgrading or changing the turbocharger can improve towing response and efficiency, but it also changes how the engine makes boost under load.
fuel economy
"but the truck is getting better and from a towing perspective, from a fuel economy perspective."
Fuel economy is how far the truck can go on a gallon of fuel. When you tow, it usually gets worse because the engine has to work harder.
Fuel economy is how efficiently a vehicle converts fuel into distance traveled, typically measured as miles per gallon (or liters per 100 km). In towing discussions, it’s strongly affected by tire size/rolling resistance, aerodynamic drag, and how hard the engine and turbo work under load.
factory ... 20 inch wheels
"And the new thing has been the difference of having a factory, uh, like the duly wheel that's on the new GMs, or I think they're like, uh, 20 inch wheels."
Bigger wheels (like 20-inch) change the tire shape and how the truck rides. That can affect comfort and fuel economy, especially under towing loads.
“20 inch wheels” refers to a larger wheel diameter than many stock towing setups. Larger wheels can change ride comfort and rolling resistance, and they typically require different tire sidewall heights—factors that can influence fuel economy and how the truck feels when towing.
Michelin
"I got the 20 inch takeoffs off this L5P. I'm going to put a Michelin tire on it. It's going to look badass."
Michelin is a well-known tire maker. Choosing a Michelin tire can change how the truck grips and how much energy it takes to roll—both matter when towing.
Michelin is a major tire brand, and the speaker is specifically talking about fitting a Michelin tire to the truck. Tire brand/model choices can matter for towing because tread design and rubber compound affect rolling resistance and wet traction.
trailer
"He's like, I hooked up to the trailer. Like I'm, I'm, I'm not single digits."
A trailer is what you hook up behind the truck to carry the load. When towing, the trailer weight and balance can change how hard the truck has to work.
A trailer is the towed vehicle that carries the load behind the truck. In towing discussions, the trailer’s weight and how it’s distributed strongly affect fuel economy, braking, and stability.
dually
"Well, it's a dually. So multiply that by six and just the wheel, no tires, the wheels."
A “dually” is a truck with extra wheels on the back. It helps the truck carry and tow heavier loads more safely because the weight is spread out over more tires.
“Dually” is shorthand for a dually (dual rear wheel) setup, where the truck has two wheels on each side of the rear axle. That increases tire contact area and load-carrying capacity, which matters a lot when towing heavy loads like boats.
rotational weight
"But what you're not accounting for is the rotational weight. Like it's, it's a byproduct at that point, right?"
Rotational weight is the extra “work” needed to spin heavy parts like wheels and tires. If the wheels/tires are heavier, the truck has to spend more energy to get them moving, which can hurt towing efficiency.
Rotational weight is the idea that mass isn’t just “sitting there”—it also has to be accelerated as it spins. He’s pointing out that heavier wheels/tires increase the rotational inertia, which can make the truck feel like it’s losing fuel economy or performance even if the static weight change seems small.
Dodge Ram
"Very different. I mean, we have a 25 Ram to do really and just taking the stock ones off o..."
The Dodge Ram is a pickup truck, usually bought for work or for towing things. Many versions come with diesel engines that make strong pulling power. In the podcast context, it sounds like they’re talking about a specific Ram and how it’s set up or maintained.
The Dodge Ram is a pickup truck line, commonly discussed in diesel performance circles because many Ram models are offered with diesel engines that emphasize torque for towing and hauling. The podcast context about having a “25 Ram” and working with stock setups points to how these trucks are often modified or maintained for real-world use. Ram trucks are frequently featured when the conversation turns to drivetrain durability, towing performance, and practical upgrades.
towing
"and you're towing out to Colorado and, you know, there's no tuning for these trucks are like the speedos off."
Towing means pulling a trailer. When you tow, the truck works harder, so changes to tires and wheels can noticeably affect fuel use.
“Towing” is the act of pulling a trailer, which changes the truck’s load and aerodynamic drag. That makes fuel economy more sensitive to changes in tire/wheel weight and rolling resistance.
speedo
"Like, you don't know what kind of mileage you're getting, but just putting the wheel and tire on the truck and trying to finagle that on with the adapters. It's like, that is a shit ton of weight."
“Speedos” means the speedometer. If you change tire size, the tires cover more or less distance per rotation, so the speedometer can read wrong.
“Speedos” is shorthand for speedometers. When tire diameter changes, the rolling circumference changes, so the speedometer can become inaccurate unless the calibration is corrected.
wheel and tire
"Like, you don't know what kind of mileage you're getting, but just putting the wheel and tire on the truck and trying to finagle that on with the adapters."
They mean the tires mounted on the wheels. Bigger or heavier tires can make the truck harder to spin, which can cost fuel and can also change what the speedometer shows.
“Wheel and tire” setup refers to the combined rotating mass and grip characteristics of the tires mounted on the wheels. On trucks, heavier wheels/tires increase rotational inertia, which can raise fuel consumption and affect how the speedometer reads.
adapters
"but just putting the wheel and tire on the truck and trying to finagle that on with the adapters. It's like, that is a shit ton of weight."
Adapters are parts that help wheels fit correctly on a vehicle. They’re used to make the wheel match the truck’s mounting points, and they can add extra weight.
“Adapters” refers to wheel-fitment hardware used to make wheels compatible with a truck’s hub/bolt pattern or center bore. Using adapters can change how wheels sit and can add weight, which indirectly affects fuel economy and handling.
wheel weight
"That's just wheel weight, tire, uh, contact to the ground and just rotational weight."
Wheel weight means how heavy the wheels (and tires) are. Heavier rotating parts take more energy to spin, which can hurt gas mileage.
“Wheel weight” is the mass of the wheel (often including the tire) that the drivetrain must accelerate and keep turning. Because wheels/tires are rotating, extra weight increases rotational energy demand, which can reduce fuel economy.
lift kits
"I mean, I'll group lift kits in there as well, because everybody knows you have a few hundred pounds of metal and, you know, aerodynamics."
Lift kits are parts that raise a truck higher off the ground. They can change the truck’s weight and tire setup, which can affect how much fuel it uses while towing.
“Lift kits” are suspension modifications that raise a truck’s ride height. They often come with additional hardware and can increase unsprung/rotating mass and change aerodynamics, which can affect towing fuel economy.
turbo choice
"Um, like turbo choice plays a huge factor in reliability and towing and just response of the truck is like, let's say you're operating in a certain RPM window like that, you know, call it 2,000 RPMs, 2200 depend on what gear you're in."
Picking the turbo isn’t just about making more power—it changes how fast the engine responds when you press the throttle. For towing, the “right” turbo helps the truck stay in the power band instead of working inefficiently.
“Turbo choice” means selecting a specific turbocharger setup (often size and model) for a diesel. That choice affects how quickly the turbo spools, how the engine responds under load, and how hard the engine works while towing.
RPM window
"response of the truck is like, let's say you're operating in a certain RPM window like that, you know, call it 2,000 RPMs, 2200 depend on what gear you're in. Speed, all that stuff."
An “RPM window” is the sweet spot of engine speed where the truck pulls hardest and works efficiently. When towing, you want to keep the engine in that zone so it doesn’t strain or feel sluggish.
An “RPM window” is the range of engine speeds where the engine and turbo combination produces the best torque and efficiency. For towing, staying in the right RPM window helps avoid lugging (too low RPM) or overworking the engine (too high RPM).
second gen swaps
"Um, you know, if you sing, if you, uh, S 300 or S 400 swap, I mean, the amount of guys with second gen swaps on their fourth gen, which is, if you like, you could throw a rock and hit six trucks. Yeah. Yeah."
“Second gen swaps” means putting newer/other-generation turbo parts into a different truck. If the rest of the setup isn’t matched (tune, supporting mods), the truck can feel rough and be less reliable.
“Second gen swaps” refers to swapping in a second-generation turbo or related hardware onto a different-generation truck. The point is that the truck’s fueling, tuning, and supporting components may not match the swapped parts, which can hurt reliability and drivability.
S 400 swap
"Um, you know, if you sing, if you, uh, S 300 or S 400 swap, I mean, the amount of guys with second gen swaps on their fourth gen, which is, if you like, you could throw a rock and hit six trucks."
An “S 400 swap” means installing a bigger turbo (an S400-type) instead of the stock one. That can help the truck pull harder, but it can also make throttle response different depending on how you drive and tune it.
An “S 400 swap” means replacing the factory turbo with an S-series S400 turbocharger setup. These swaps are popular because they can support more airflow for towing and power, but the larger turbo can also change spool characteristics and how the truck behaves in the RPM range.
S 300
"Um, you know, if you sing, if you, uh, S 300 or S 400 swap, I mean, the amount of guys with second gen swaps on their fourth gen, which is, if you like, you could throw a rock and hit six trucks."
“S 300” is a name people use for a certain style of turbo used in diesel performance setups. Different versions of that turbo can change how quickly the truck responds and how well it pulls for long towing runs.
“S 300” refers to a turbocharger family/series commonly associated with diesel performance builds. In practice, people choose between different S-series turbo variants to balance spool-up (response) and sustained towing power.
fourth gen
"of guys with second gen swaps on their fourth gen, which is, if you like, you could throw a rock and hit six trucks. Yeah. Yeah. But I mean, those guys are also on 24s."
“Fourth gen” means a particular generation of the truck model. The speaker is saying people often install parts from a different generation onto that truck, which can change how it drives and how reliable it is.
“Fourth gen” is shorthand for a specific generation of a truck platform (commonly used in diesel communities). The speaker is contrasting that generation with “second gen swaps,” implying the swapped turbo/hardware is from a different generation than the truck’s original setup.
24s
"But I mean, those guys are also on 24s. They got rubber bands and they're not really there for mileage, but like, oh, it drives like shit."
“24s” means the truck has very large wheels (24-inch rims). Bigger wheels can change how the truck rides and how efficiently it rolls, which can matter when you’re towing.
“24s” refers to running 24-inch wheels. Larger wheels can affect ride quality, traction, and rolling resistance, which can indirectly influence fuel economy and how hard the drivetrain works during towing.
rubber bands
"They got rubber bands and they're not really there for mileage, but like, oh, it drives like shit. Can you tune it?"
“Rubber bands” is slang for low-profile tires with thin sidewalls. They can make the ride feel stiffer and can be less forgiving on rough roads.
“Rubber bands” is slang for very thin tire sidewalls on low-profile tires. Thin sidewalls can make the ride harsher and can reduce comfort and traction feel, especially when towing or driving over rough pavement.
intake intercooler pipes
"Yeah, I would say on something like that intake intercooler pipes, you know, there's, there's simple ancillary upgrades you could do to clean up some weak links from truck to truck..."
These are the tubes that move compressed air from the turbo through the intercooler and into the engine. Better pipes can help the truck breathe more easily, which can make it feel more responsive and efficient.
On turbocharged diesel trucks, intake intercooler pipes connect the turbo piping to the intercooler and then to the intake manifold. They matter because smoother, correctly sized airflow paths can improve boost response and how effectively the engine breathes under load.
airflow tuning
"So intake intercooler pipes help with airflow tuning to help with the responsiveness and broaden the power band, help with efficiency."
Airflow tuning means setting up the engine so it gets the right amount of air at the right time. On a turbo diesel, that can help it respond better when you press the pedal.
Airflow tuning is adjusting the engine’s breathing—how much air it gets and how efficiently that air moves through the intake system. On diesels, that often ties directly to boost control and the turbo/intercooler setup, which affects responsiveness and the usable power range.
power band
"So intake intercooler pipes help with airflow tuning to help with the responsiveness and broaden the power band, help with efficiency."
The power band is the RPM range where the engine feels strongest and most useful. If it’s broader, the truck pulls well across more driving situations.
The power band is the engine’s effective range of power delivery across engine speeds (RPM). A wider or better-shaped power band means the truck feels stronger over more of the RPM range instead of only at one narrow band.
tune the engine
"If you're going to tune the engine, do the trans, right? And deal with a reputable source..."
Tuning the engine means reprogramming how the truck runs—like how much fuel and boost it uses. The right tune can make it pull better and feel smoother, especially when towing.
Tuning the engine usually means changing the vehicle’s calibration (fueling, boost targets, timing, and shift/torque behavior) to better match the truck’s hardware and the driver’s goals. In towing-focused builds, the goal is typically improved drivability and efficiency while staying within safe operating limits.
do the trans
"If you're going to tune the engine, do the trans, right? And deal with a reputable source that knows what the hell they're talking about..."
If you change the engine tune, you often need to adjust the transmission too. That helps the truck shift correctly and stay reliable when you’re towing heavy loads.
“Do the trans” refers to tuning or upgrading the transmission so it can handle the torque and drivability changes from an engine tune. This is especially important for towing because transmission shift behavior and torque management affect heat, wear, and reliability.
gauge pack
"A gauge pack, I can't stress that enough. And I think a gauge pack is so overlooked."
A gauge pack is a set of extra meters that show important numbers while you drive. It helps you spot overheating or boost/fuel issues early—especially when towing.
A gauge pack is a set of aftermarket gauges that monitor critical engine and drivetrain parameters in real time. For towing and reliability, common gauges include boost pressure, exhaust gas temperature (EGT), and transmission temperature/pressure, helping you catch problems before they cause damage.
engine vitals
"which is an on board that you can monitor the engine vitals. It's a protection of the investment."
Engine vitals are the most important “health” numbers for the engine. Watching them helps you avoid overheating or running too hard, especially while towing.
Engine vitals are the key operating measurements that indicate engine health and stress levels, such as temperatures, boost, and other parameters. Monitoring engine vitals is a common towing reliability practice because it helps prevent overheating and protects components under heavy load.
codes
"And again, be able to check codes. Or even if you're not in a position to get a gauge pack, because again, depending on what you get, that can be pricey."
“Codes” are the numbers your truck stores when it detects a problem. They’re like clues that help you figure out what’s going on instead of guessing.
In this context, “codes” are diagnostic trouble codes stored by the truck’s engine computer when something is wrong. They help you pinpoint the problem (or at least what system triggered the warning) and guide next steps.
OBD scanner
"Like, I don't, kind of, I don't want you to get like a shitty OBD scanner, something, something where if you need to clear code and get you to the next exit, it's so much better than, than having nothing."
An OBD scanner is a tool that connects to your truck and tells you what warning codes it’s throwing. It can sometimes clear the code so you can keep going to get it checked.
An OBD scanner plugs into your truck’s OBD (On-Board Diagnostics) port to read diagnostic trouble codes. It can also clear codes so the vehicle can be driven to a safe location or next exit.
throttle response
"No throttle response. What ruins the trip, right? You're in your truck having an issue."
Throttle response is how fast your truck reacts when you step on the gas. If it feels delayed or weak, it can mean the engine isn’t getting the right power or is protecting itself.
Throttle response is how quickly and smoothly the truck reacts when you press the accelerator. On a towing setup, poor throttle response can indicate a fueling/boost issue, a limp mode condition, or an electronic control problem.
bigger injectors
"You didn't need to buy that bigger injector. You didn't need to buy that big turbo kit."
A bigger injector is a fuel part that can spray more fuel into the engine. If you upgrade it without the right supporting changes, the truck can run poorly or cause problems.
A bigger injector is an upgraded fuel injector that can deliver more fuel for higher power. While it can support performance mods, it can also create drivability issues or reliability problems if the rest of the setup (tuning, airflow, boost control) isn’t matched.
big turbo kit
"You didn't need to buy that bigger injector. You didn't need to buy that big turbo kit."
A big turbo kit is an upgrade that increases the turbo’s ability to make boost (extra air pressure). More boost can mean more power, but it can also make the truck run hotter or feel worse if it’s not matched to the rest of the build.
A big turbo kit is a package of parts used to upgrade a turbocharger system for more boost and power. For towing-focused builds, going “too big” can hurt drivability, increase heat, and stress components unless the tune and supporting hardware are properly set up.
Dodge Charger
"...arrior and your group of friends with the biggest charger or the most power. But hey, man, I went on a trip..."
The Dodge Charger is a large car (a sedan) that’s built for performance. People talk about it a lot because it can be made very powerful and still work well for driving on the road. It’s the kind of car you’d choose if you want both comfort and strong acceleration.
The Dodge Charger is a full-size American muscle sedan that’s known for strong performance and a wide range of powertrains, including diesel options in some markets/years. It often comes up in conversations about big power and long-trip capability because it can be set up for both acceleration and everyday driving. In a diesel performance podcast, it’s a natural topic when discussing how a heavy, comfortable car can still deliver impressive torque and highway usability.
RVs
"Like you hear about this stuff all the time. My RV is uncovered and soot and doesn't smell like smoke on the inside."
An RV is a camper you drive or tow for trips. The speaker is saying their RV doesn’t have soot or smoke smell inside, implying better exhaust control.
An RV (recreational vehicle) is a motorhome or trailer used for travel and camping. The speaker uses it as an example of how soot and smoke odors can be a problem if exhaust isn’t managed properly.
weak links
"I understand you want to justify a weak link and improve it, but you don't want to over complicate the setup to where it becomes a bottleneck to maintenance or the long-term reliability of the truck down the road."
A weak link is the component in a system that limits performance or becomes the first to fail when you add power or load. In towing builds, the weak link might be something like cooling, fueling, or drivetrain durability—so improving it can help reliability, but only if you don’t create new bottlenecks elsewhere.
bottleneck to maintenance
"you don't want to over complicate the setup to where it becomes a bottleneck to maintenance or the long-term reliability of the truck down the road."
A maintenance bottleneck means your upgrades make it harder to do normal service. If it’s too complicated to maintain, the truck can become less reliable over time even if the performance parts are good.
A maintenance bottleneck is when modifications make routine service harder, slower, or more failure-prone—often by adding complexity, tight packaging, or hard-to-reach components. For towing trucks, the goal is to improve reliability without turning basic upkeep into a recurring problem.
supporting modifications
"You're that guy who has that new truck that you put a new turbo on that you didn't need when I needed three other supporting modifications."
When you upgrade one big thing on a truck, you often need other changes too. Those “supporting modifications” help the truck handle the extra power without overheating or stressing components.
In diesel performance builds, “supporting modifications” are the other upgrades needed so a major change (like a turbo) can work safely and effectively. They often include fueling, cooling, and drivetrain/traction upgrades so the truck can handle the added power under load.
do it in stages
"I would say be tasteful, do it in stages, be smart about it. Stages is a big thing."
Instead of changing everything at once, you upgrade your truck step-by-step. That way you can see what each change actually does and fix issues before moving to the next upgrade.
“Do it in stages” is a build strategy where you upgrade in a sequence rather than all at once. It helps you validate each step’s results, manage costs, and avoid creating an untraceable problem if something goes wrong.
horsepower
"At the time I planned on trying to make 7,800 horse, I was just setting myself up for the future."
“Horse” is shorthand for horsepower, which is how much power the engine can make. More horsepower generally helps a truck pull harder, especially when towing.
“Horse” here refers to horsepower, a measure of engine power. In towing-focused builds, people often target a specific horsepower goal because it correlates with how strongly the truck can pull under load.
6-4
"Like my truck drives nice, but it drive a hell of a lot better with an STR on it or a 64."
“64” here probably refers to a particular upgrade or turbo size that affects how the truck drives. The speaker says the truck feels better with it, but this clip doesn’t clarify what “64” stands for.
“64” is likely shorthand for a specific turbo or performance hardware size/model (common in diesel circles), but the excerpt doesn’t provide enough context to identify it confidently. It’s being compared as an alternative to “STR” for improving drivability.
Request an Explanation
Heard something you'd like explained? We'll add it to this episode.
Sign in to request explanations for terms you heard.
Want to learn more?
Browse our glossary for plain-English explanations of automotive terms, jargon, and concepts.
Help improve this episode
See something that's not quite right? Our annotations are AI-generated and can sometimes miss the mark. Click the flag icon on any annotation to suggest a correction.