These are replacement parts sold by or through GM that are meant to fit and work like the original parts. The idea is that they match GM’s specs for your car.
Original equipment means the part is made to match what the car originally used. It’s usually chosen when you want the replacement to fit and work like the factory part.
Concept
OEM-equivalent
OEM-equivalent parts are made to be as close as possible to the original factory parts. The goal is that they fit right and behave like the part your car was built with.
They’re referring to NASCAR’s top series, often called the “Cup” series. When they say someone finished 11th, that’s their place in that specific race.
A crew chief is the lead strategist for a racing team, responsible for race strategy, car setup direction, and coordinating the pit crew. In NASCAR, the crew chief’s decisions during practice and the race can heavily influence tire wear and track position.
“Full-time” here means racing in the Cup series regularly throughout the season, not just a few events. It usually comes with a more consistent team and car.
Pit stops are when the car comes in during the race to get service—usually tires and fuel. When you stop (and how quickly) can change where you run on the track.
NASCAR is a stock-car racing series where teams run oval-track races and rely heavily on pit strategy and car setup. The roles and decisions mentioned here—like crew chief direction—are central to how NASCAR teams operate.
“Xfinity” is NASCAR’s second major racing series. It’s a place where drivers and teams compete at a high level, often as preparation for the top NASCAR series.
An electric vehicle (EV) uses an electric motor powered by a battery instead of a gasoline engine. The segment connects EV development to future vehicle body styles (like CUV) that could influence how racing series think about the “future” of their cars.
CUV stands for crossover utility vehicle. It’s basically a car body style that sits between a regular car and a truck. They’re saying the future could include that kind of body shape for racing and branding.
“Brand identity” here refers to how different vehicle body styles are used to distinguish series or product lines for manufacturers and racing. The segment frames truck, CUV, and “cup” as three distinct body types that help OEMs create recognizable identities across categories.
They’re talking about a racing series called the Orale series and whether it could change what the cars look like in the future. The big point is that racing may start using body styles that match what people drive every day.
They mean the race car parts aren’t available or made quickly enough. If the parts can’t keep up with how many cars the series needs, it becomes a problem for everyone.
They’re referring to the race car associated with O’Reilly sponsorship. Think of it as “the team’s car” in that branded program.
Term
nine inch forward rear end
They’re talking about the rear axle/rear-end setup. The goal is to replace the current rear-end with a newer version that’s easier to support and better suited to modern racing.
The front suspension is what holds the front wheels to the car and helps the tires stay planted. They want an updated setup to improve how the car drives.
“Bolt on” means the front and rear body sections can be removed and replaced using bolts. That’s important in racing because it can make repairs faster and cheaper between events.
“O’Reilly series” is the name of a NASCAR series that’s sponsored by O’Reilly Auto Parts. It’s basically how fans know which racing series they’re talking about.
They’re saying some race parts are hard to get right now. When not many people need a part, companies stop making it, so teams have to find a new way to keep using the car.
Ball joints are small pivot joints in the suspension that help the wheels move up/down and turn. They wear out and need replacement, and in racing you also care about getting them reliably.
They’re basically saying, “If it’s working, don’t mess with it too much.” In racing, big changes can make cars harder to build/repair and can also create shortages of parts.
Concept
ATTR cardiac amyloidosis (ATTR-CM)
This is a heart problem caused by a sticky protein building up in the heart. Because it can look like other heart issues, it can take a while to figure out what’s going on. The point is to know about it and talk to a doctor if symptoms fit.
BridgeBio is the sponsor behind the medical advertisement in this part of the episode. Sponsors pay for these messages, so it’s useful to know who’s behind them. It doesn’t relate to cars directly.
Kubota is a company that makes tractors and other outdoor equipment. The hosts mention a sale event called “Kubota Orange Days” with discounts on compact tractors. It’s basically an ad for buying equipment.
Term
Gold and Silver Aftermarket Parts
They’re talking about different “levels” of replacement parts sold after the car is built. Higher tiers are usually meant to be closer to original quality, while lower tiers cost less.
Term
GMOE
GMOE is a label for a GM-focused parts tier that’s meant to be closer to the original parts. It’s being compared to other aftermarket tiers in the ad.
Chevy is the common name for Chevrolet, a GM brand. The hosts use it in a racing/team context (“second best Chevy team”), which ties the conversation back to GM-affiliated motorsports.
Chevrolet is the car brand involved in NASCAR. Teams get technical guidance from the manufacturer, but how well they apply it can make a big difference in performance.
Kansas is a specific NASCAR race track. Teams have to set up the car differently for each track, and the hosts are talking about what kind of results they can realistically aim for there.
“Qualified 16th” means they earned the 16th spot to start the race. Where you start can make it easier or harder to move up, depending on traffic and track position.
They mention Bristol, another race track with its own unique feel. The point is that after practice, they thought they had a strong car, but the race result didn’t match that expectation.
A “top 10 car” means the team believes the car is fast enough to run near the front and finish around the top 10. It’s a prediction based on how the car felt during practice.
In NASCAR, races are split into sections called stages. Finishing well in a stage earns extra points, but some drivers focus more on winning the whole race than collecting those extra points.
They’re talking about the big, high-speed oval races. On these tracks, cars often run in tight groups, so the racing strategy can be different than on smaller tracks.
“Battle at the Beach” is the name of a particular race event. They’re saying it happened on Daytona’s back stretch and it was a shorter-track style race.
Term
bucket
A “bucket” here is basically the place where the spring sits in the suspension. If the spring isn’t in the right spot, the suspension won’t work correctly.
Springs are what help the suspension move smoothly over bumps and while turning. If one spring isn’t installed right, the car can feel wrong or not work the way it should.
After certain parts of a race weekend, your car can be taken to an official holding area called impound. It helps keep the car from being changed or messed with before the next step.
Seat molds are custom padding/fit pieces that help the driver sit in the same spot every time. That makes it easier to control the car and feel more secure during hard turns.
Qualifying is the process that decides who gets to start the race and in what position. If a driver or car doesn’t qualify, the team may have to put someone else in the car.
Term
race day story
A “race day story” is basically what happens around the race weekend, not just what happens on the track. It can include things like who ends up driving and why.
Concept
monotonous and repetitive
Racing can get mentally exhausting because you do the same kind of work over and over—practice laps and trying to improve—without seeing results right away.
Term
moke
A “Moke” is a tiny, basic vehicle—kind of like a golf cart—that you can drive around town. It’s usually open-air and simple, so on rough roads it can feel bumpy.
Some phones can detect a serious crash and automatically send alerts to people you’ve set as emergency contacts. That’s what they mean by “code red” alerts.
They’re talking about a system that can tell when there’s been a crash and then automatically sends a message. It can also include where the crash happened so people can respond faster.
Location sharing is when your phone lets someone else see where you are. If it’s turned off, tracking and “find my phone” style features may only show a rough area.
Concept
GPS location / Find My-style tracking
This is the “find my phone” kind of tech. It shows where your phone was last seen using location signals, so you can drive to that spot and look for it.
Concept
Last known location vs. real-time location
Location apps often show where the device was last seen. That’s still useful for finding it, but it might not update perfectly if the phone is broken or out of signal.
Concept
Emergency contacts alerts after a device issue
The phone can automatically message your emergency contacts if it detects a problem. So even if you can’t use the phone normally, it may still be able to send an alert.
They’re talking about what happens when you lose your phone and how they try to find it again. The key idea is retracing where it could have been dropped.
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About this episode
Dale Jr. Download’s “Dirty Thirty” mixes NASCAR talk, racing history, and a chaotic personal story. Dale and guests debate whether NASCAR should keep the current car body or risk switching to something like an electric CUV-style platform—arguing that changing what’s working could hurt momentum. There’s also a behind-the-scenes look at crew-chief trust and career moves involving Bobby Allison. The episode’s funniest moment: Dale loses a smashed phone in St. Martin, triggering emergency alerts and a frantic hunt. Later, Ricky Carmichael discusses burnout, sacrifice, and sticking with motocross through the grind.
It's officially time for another episode of Dirty Thirty — where you give us 30 minutes of your time, and we give you our very best half hour from the week.
We start off with a legend, Jimmy Fennig, who talks about the loyalty he had towards Bobby Allison, and the moment he knew he would do anything for him.
In Dirty Air this week, Dale Jr. reacts to a quote from NASCAR's John Probst about a possible future where the O'Reilly series could be filled with CUV body styles.
Next up, Ricky Stenhouse Jr. crashed the Actions Detrimental set, and Denny Hamlin wanted to ask him about his consistency and how he's approaching Talladega.
Over on Door Bumper Clear, O'Reilly Series team owner Sam Hunt recalls the story where he had his seat sold out from under him, which also might have propelled his career in team ownership forward.
In the latest episode of Sons & Daughters, Shannon Spake sat down with the GOAT of Motocross & Supercross, Ricky Carmichael, and asked him about the time he almost thought about quitting before he ever became a superstar.
And finally, we end up on a monumental moment in the Earnhardt household — Amy is no longer the only one who has lost her phone. It's a tale you have to hear!
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