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Why Is Toyota Racing This Tundra On 37s? Deep Dive! | Ep. 326

Why Is Toyota Racing This Tundra On 37s? Deep Dive! | Ep. 326

TFL Talkin' Trucks Apr 10, 2026 49 min
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About this episode

Toyota’s engineers and drivers explain why a hybrid Tundra TRD Pro showed up on 37-inch tires for the Mint 400—then actually finished. Senior engineer Skyler Watson details the factory-built, rules-limited build: stock powertrain and suspension points, safety cage, surge/fuel setup, recovery gear, and durability-focused tire choice (no flats). The hybrid system’s acceleration and regenerative braking are credited for surviving mixed traffic and punishing desert terrain. The hosts also debate the TRD Hammer trademark and broader factory off-road trends from Ford, Hyundai, and Honda.

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Technical Too Afraid to Ask
Car

Ford F150

"study information and restrictions, visit forhurs.com. Some say that Toyota is working on a true Ford F-150 Raptor competitor, maybe even a Remt-RX competitor, with the next TRD Hammer because they trademarked that name."

The Ford F-150 is a large pickup truck made for hauling, towing, and daily use. People talk about it a lot because Ford also makes high-performance versions for off-road driving. The podcast mentions it when discussing possible future competitors to that kind of truck.

Car

Toyota Tundra

"...le weeks ago where Toyota was competing with the Tundra. Yeah, but Toyota was actually nice enough to al..."

The Toyota Tundra is a large pickup truck made for tasks like towing and carrying things. It’s a direct competitor to other big trucks in the same category. The episode mentions it while talking about how Toyota is competing in that space.

Concept

research and development

"Is this just a weak connectivity for these guys? Or is it some development, some research and development toward actually making something that a regular customer could go out and buy?"

R&D is how companies figure out what works and what doesn’t. They test ideas—sometimes using race or prototype vehicles—so they can improve the final product you can buy.

Concept

Mint 400

"...to compete in the Mint 400, because if you're not aware, the Mint 400 is a pretty rugged race. It is not an easy competition to just take a factory vehicle off of the assembly line..."

The Mint 400 is a tough off-road race in the Nevada desert. It’s known for rough ground and it really tests whether a vehicle can survive and keep going.

Concept

Nevada desert (near Las Vegas)

"I mean, it's in the Nevada desert, near Las Vegas, Nevada. And so, there's everything out there. There's sandy washes, there's big boulders and rocks..."

The race is in the Nevada desert near Las Vegas. That area has sand, rocks, and rough trails, so the truck has to handle a lot of different kinds of bumps.

Concept

pre-production vehicle

"...it started its life as a non-sellable, off-the-line pre-production vehicle that is a hybrid TRD Pro."

A pre-production vehicle is an early version of a car or truck made before it goes on sale. Engineers use it to test things and make sure everything works reliably.

Concept

official finisher laps

"And for class by class, there's official finisher laps. ... So the Mint 400 name comes from four laps of around 100 miles per lap."

“Official finisher laps” means how many laps you must complete to count as finishing the race. The rules can vary depending on your class.

Concept

side by side drivers

"There were other vehicles out there, like professionally side by side drivers that ran a full four laps..."

“Side-by-side” (SxS) refers to off-road vehicles with two seats and a roll cage, commonly used in desert racing and off-road series. The transcript uses it to distinguish different vehicle types and their ability to run the full required laps.

Concept

durability

"I think we had confidence in the vehicle and the platform in its durability. There was no question of us finishing."

Durability means the truck can take a beating and keep working. In a race, it’s about not breaking down when things get rough.

Concept

Kaizen constant improvement

"I mean, the spirit of Toyota is Kaizen constant improvement. And we really believe that."

Kaizen is the idea of always trying to improve a little bit. Instead of one big change, you keep learning and making small updates over time.

Concept

regenerative breaking

"...every corner in that desert, in that environment, we were able to use the hybrid system and then a lot of regenerative breaking and adding energy back into that system."

When you slow down, regenerative braking helps turn some of that motion into electricity. That electricity goes back into the battery so you can use it again later.

Concept

roll cage

"Now, the truck has to have a roll cage. I mean, it has to have a lot of safety equipment, obviously, because safety is number one in any racing. So then the truck is now heavier."

A roll cage is a strong metal framework inside the truck. It helps keep you safer if the truck flips or crashes, but it usually adds weight.

Term

ground clearance

"ride height a little bit with some additional ground clearance rules also allow us to add some skid plates underneath."

Ground clearance is how much space your truck has between the bottom and the road. If you have more of it, you’re less likely to hit rocks or ruts underneath.

Concept

flat tire

"I'm clapping because, well, a flat tire and not only slows you down, right? You have to change it."

A flat tire is when your tire goes low on air. It’s a big problem because it slows you down and you have to stop to fix or replace the tire.

Term

shooting head forms at hoods

"His day job is actually a safety crash technician. So he's shooting head forms at hoods."

In crash testing, they use special dummy heads to see what happens when someone’s head hits the front of a car. Testing hoods helps engineers design the front to reduce injury in pedestrian-type impacts.

Concept

driving in the dark

"I mean, and also, were you in the driving in the dark, racing in the dark at this point? Yes, yep."

Driving in the dark is harder because you can’t see the terrain as clearly. It usually means you have to drive more carefully and depend more on guidance.

Concept

whoops

"you can get color changes in the whoops and the terrain. And sometimes it's a little bit more recognizable."

Whoops are those repeating bumps in the dirt. They make the truck bounce a lot, so you have to drive smoothly to keep control and not lose traction.

Concept

pre ran

"is I kind of pre ran, so to speak, Vegas, Torino course before it was ever run, right? So so it was like a groomed course."

Pre-running is when you drive the course before the race to learn where the bumps and hazards are. It helps you go faster later because you’re not guessing.

Brand

General Motors

"[2363.7s] And what General Motors has been doing, our producer, Colin, I know this really well. [2369.3s] Colin, I went Vegas, Torino, we pre ran that in Colorado, ZR2."

General Motors is the company that makes brands like Chevrolet. In this discussion, they’re being called out for needing more factory-built off-road/wide-body truck options.

Brand

Chevy

"We, we were there watching the Mint 400 where Chevy was participating. [2381.3s] Ford does a lot of this too."

“Chevy” means Chevrolet. The speaker is pointing out that Chevrolet shows up in off-road racing, which helps prove their trucks and sell the idea to buyers.

Concept

rock crawling

"And we take a lot of these wide body trucks and we rock crawl them because rock crawling is the majority of what we have here in Colorado."

Rock crawling is off-roading where you go very slowly over rocks and obstacles. The goal is to keep traction and control so you can climb and maneuver without spinning out.

Concept

TRD

"[2524.7s] Yeah. [2525.0s] So they publish a lot about what they're doing and the name DRT is kind of cool [2529.0s] because it's dirt racing team and, and DRT minus one vowel is dirt, dirt, but [2535.6s] it's also TRD backwards."

TRD stands for Toyota Racing Development. It’s Toyota’s performance and racing brand, and it usually means the truck has off-road or durability-focused upgrades.

Car

Ford Mustang

"Jim Farley hinted that, like, Will a Mustang be a Raptor?"

The Ford Mustang is Ford’s famous sports car. The conversation is joking/speculating about whether Ford could make a Mustang that’s built for off-road adventures too.

Brand

Hyundai

"Hyundai unveiled a concept on 37s too... So which, and it's very cool because credit where credits do Hyundai, Kia, Genesis, these brands are willing to throw something against the wall and see if it sticks."

The hosts are pointing out that Hyundai is willing to try new, bold ideas. They’re saying Hyundai (and related brands) will test concepts to see what catches on.

Term

37s

"And now, once again, speaking about New York City, Hyundai unveiled a concept on 37s too. This was their boulder named after Boulder, Colorado."

“37s” means very large tires—about 37 inches tall. Bigger tires help with ground clearance for off-roading, but they often require suspension and fitment changes.

Concept

throw something against the wall and see if it sticks

"credit where credits do Hyundai, Kia, Genesis, these brands are willing to throw something against the wall and see if it sticks. They're willing to put themselves out there a little bit and try something different."

It means trying new ideas and seeing what people actually respond to. In car terms, that often starts with concepts or prototypes before committing to production.

Brand

Volvo

"Some more massive, pretty interesting things that I got to do in Virginia with [3062.7s] some Volvo semi trucks. [3064.5s] So we're looking forward to talking a little bit more about that."

Volvo makes big trucks that are used for hauling goods. The hosts are saying they went to a Volvo semi-truck event where they got to learn or experience how those trucks work.

Concept

semi trucks

"Some more massive, pretty interesting things that I got to do in Virginia with [3062.7s] some Volvo semi trucks. [3064.5s] So we're looking forward to talking a little bit more about that. [3067.2s] Yeah. [3073.2s] Fair enough. [3073.9s] Yeah, you had to walk 10 miles around a convention center. [3076.4s] I was pulling big trailers or big semis."

A semi truck is a large truck that pulls a trailer, usually for long trips. It’s the kind of vehicle you see hauling freight across states.

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