Truck vs SUV: We Push The Limits of the new 2021 GMC Yukon AT4 Off-Road! 

Outstanding review!!

Why stop as soon as the truck starts moving?

Enjoyed the video, but you certainly didn’t push the limits of either vehicle. Also the trail boss probably would have climbed the hill in 2wd as well, Nathan let off as soon as the truck hooked up and started moving.

Went to the GM dealer the other day looking at these Yukons/Tahoes they are starting at $82,000 to $87,000!!!!! Absolutely ridiculous!

That right rear tire on the Silverado looked like it had 80 pounds psi. Spinning on only the center of the tread.

I like that Nathan is such a strong champion for large V8s... the 6.2L would be nice!

Yes why stop when the truck starts going. Let’s be real here

A really interesting test would be taking this Yukon AT4 off-road vs. the 200 series Toyota Landcruiser. I’m guessing most people would be more likely to cross shop those over the SUV and a pick-up.

Truck with light rear end will struggle up hill in 2 wheel drive always. The G80 was not the problem. The SUV has more weight in the rear which lead to better traction in 2 wheel drive. Again, nothing wrong with the G80 in this comparison.

I still can’t believe we live in a world that a GMC Yukon costs $77k. I guess I’m just old fashioned.

This is my type of video"! I love to see you guys pushing the limits and comparing these vehicles so us as enthusiasts and consumers will know what we want and what we're asking for at the dealership

I just got the Tahoe High Country , with 6.2. Not taking it off road for a couple years. 😄

If you can "see the wilderness" through the sunroof, you may want to call Winders Towing.

That is not 10.8" at the rear swing arm. That's not how ground clearance is measured. Its not to the tallest portion of the undercarriage, it should be measured to the lowest hanging part of the undercarriage.

I’d take that GMC over a Cadillac Escalade any day

Watching these trucks off road is like watching and old dog run or a few old men play football. Youre happy they are doing it but boy its painful to watch and looks so stiff and uncomfortable 😅

If you kept throttle when the truck started moving around 3:00, you would’ve easily made it up the hill. Don’t knock 2wd just learn how to off-road

I like how you installed action cam to show rear wheels. Will use this idea in my videos. Thank you!

That Yukon is really impressive

I know this is now an 'old' review but this is why I want to see the Yukon AT4 tested against the Sequoia TRD Pro. It seems that the AT4 will be better off road due to much more ground clearance and better arrival/departure angles, has those recovery hooks, and for in truck 'camping' - seats that fold flat. I wish it could be optioned w 18"s and more aggressive rubber.

Ford expedition v Chevrolet Tahoe v GMC AT4 .... Do this comparison

That G80 did exactly what it was supposed to.

Good to see Nathan!

You can tell by the skid on the tire that it’s overinflated. Only the center of the tire was making traction to the ground, hence your spinning.

I think it did better in 2wD mostly because of the weight in the rear end guys. You mentioned that quick but were gushing over the limited slip in the Yukon. You could see that the truck had both wheels spinning just with no weight over those wheels it had no traction. Throw 300 lbs of sand in the back of that truck and it would have walked just like the Yukon. That said, the Yukon did way better than I would have thought. Nice truck.

The G80 worked just fine plus every time the truck started getting momentum they stopped. Love the new Yukons though.

Can we please do an episode on the reliability issues with the dynamic fuel management?

The AT4 lineup looks mean. Love it

As a ford guy I’ll say the gm got the Yukon front end looking good, at least compared to the Silverado front end, either way if I was gonna buy a gm suv I think I’d buy the Yukon strictly because it looks better than the Tahoe

The Yukon does better on that hill simply because there's a greater proportion of weight over the rear drive wheels than in the truck. Sure the electronics make it a bit smoother, but in this case, more weight where it matters means more traction.

Need to use a little less throttle and tap the brake with your left foot. That G80 will lock up much faster than way.

I’m happy to see that the limited slip works

That's what I hate about my G80 on my Sierra the spin and how the rear end kicks out to the side and some times on a tight trail as Andre says its but clinching as the think you are going to hit a tree or some other object. Yes the Chevy and GMC Trucks need a electric locking differential. Nice video.

Is nobody going to say anything about those ridiculously low hanging rear suspension arms on the Yukon?

Your actual ground clearance with the Yukon is about 4 inches with those lower arms on the IRS dangling low like that.

Hall & Oates. Hell yeah Andre

GM is very proud of you guys , a free commercial , does anyone really take a 77 thousand dollar vehicle off road ????

Love that new GMC

Can anybody teach this guy how to drive!! - why he stopped drive when it’s start climb??.

I personally would rather have the Trail Boss over the AT4. The mechanical locker may seem slower and clunkier, but it will always work and as Nathan mentioned the difference traction-wise is that a pickup has a lot less weight over the rear wheels. I do however like the styling of the AT4 better, the GMC front end is easier on the eyes than the Chevy front end.

That is four-wheeler drive mag off road SUV of the year

Good Job Genral Motor Nice car We in saudia arabia Like and respect Old and new GM car

Cool but, Power Wagon still don’t care. 🤷‍♂️

The offroad community is slowly learning that independent suspension can be just as off road worthy as solid axles. The Tough T, Vanagon Syncro, Pinzgauer, and all modern side by sides prove that beyond a reasonable doubt. The new Defender will as well.

Find it odd how everyone says theres no competition from GM for the Bronco. That AT4 looks like damn good competition to me....

The Chevrolet Tahoe and Suburban, the GMC Yukon and Yukon XL, and the Cadillac Escalade account for 50% of all large SUV sales in the US. GM makes 340,000 of them every year and exports about 80,000 to 31 countries. They’re made in GM’s plant in Arlington, Texas, which is said to be the most profitable assembly plant in the world. We estimate they generate $20 billion in revenue for GM and about $4 billion in profits. Autoline Daily.

So the base model costs $65k? Add a few options, and the price is more than the $70k Tri-Motor CyberTruck. But even the $40k Single-Motor CyberTruck flattens the Yukon on features: - Adaptive air suspension giving a clearance from 8" to 16" - AC power (110/220 V) on tap - Compressed air on tap - Indestructible stainless steel exoskeleton - Lockable Vault large enough to comfortably sleep in - Large frunk and sail-pillar storage - 0-60 in 6.5 seconds (2.9 for Tri-Motor) - 17-in screen for Tesla's seamless software experience - OTA updates provide ongoing improvements - AutoPilot industry leading highway driving assist - Full Self Driving option available for $8k - Illuminated stainless steel bed with T-slots, L-slots - Alon (Aluminum OxyNitride) super-strong glass - 0 emission, noiseless, gearless electric powertrain - Max torque at zero speed

That AT kicked ass.

Nathan got a new GSHOCK

Yes Nathan! Glad as well to see you again! I love the TFL family and what you all do! Keep it coming!

Okay, so, the goal is not to get up the damn hill (I struggle to understand how y'all can be missing that point). The point is to compare and contrast two systems. If they just wanted to get up the hill, they wouldn't have been in 2WD at all, now would they? Nathan stopped hitting the gas when the truck started crabbing sharply sideways- as he said in the video was the reason- because if you were in an actually hairy situation (say, on the side of a cliff, or sliding towards a tree) that would be a dealbreaker right there. You could very literally get up that hill in a 2WD minivan, if you really wanted to. The GMC, on the other hand, stayed in control and on line throughout the drive. That is why it won the comparison. And that's why it SHOULD win the comparison. They are knocking the G80 for darn good reason. It lacks finesse, it lacks control, and it is a blunt tool that the driver has to work around, rather than work with. With a manual locker, you can pick your line and drive it slow and controlled. With the GMC, they could pick their line and drive it slow and controlled, because the electronic locker just worked. With the G80, Nathan had to spin the tire, wait for it to hook up, and then the whole vehicle crabbed sideways because he had to stay on the gas to keep the locker locked. It's a bad system, and GM should feel bad.

E-LSD make's such a big difference only problem is it might not last as long as the G80

Remarkable the GMC 2wd, but I had a Chevy Suburban 2wd and it never got stuck no matter where I took it. I think it's the weight distribution.

The ELSD & air suspension is standard on tahoe z71 in the middle east

6.2 is nice but current gen 5.3s with a good tune and bolt on is plenty enough

I think the Yukon performed better because there’s more weight in the rear than the Trail Boss. If you look closely, it appears the Yukon’s rear differential locked at the same rotations as the Trail Boss.

OMG! Nathan?!?! About damn time

I've made it up steeper and rocky hills with my shitbox in 2wd with 0 traction issues

Looks like Nathan is slimming down... good to see him.

my G80 will lock up on on-ramps and off-ramps super annoying sometimes- but it works perfect when I need it too

I thought Roman ate Nathan

This was a very good demo of the LSD and the G80. I think the big difference between the 2 was weight, there is just so much less weight on the rear axle of the truck

Glad to see the GMC has redeemed itself, watching the Tahoe Z71 with the marginal LSD and no eLSD or rear locker option quickly turned me off from considering one in a couple of years to replace my truck. We do some overlanding, nothing extreme but having the G80 is a nice safety net. That eLSD worked great...but then with no diesel option available it's not the ideal option for me. Guess I'll be sticking with my Canyon with the Duramax for a while longer. :)

Good to know that the Yukon AT4 is better than the trail boss off road.

honestly the fact the trailboss has no weight in the back makes a bigger difference than you think

that at4 looks like something my grandpa would drive

What psi was the trail boss when on 2wd? Or on that test trive? Up the hill?

Where’s the snow I thought it snowed

You guys should try the Chevy suburban off road

this AT4 is what the blazer should have been.

Only the newer G80s spin that much, the older ones when the rear ends were still made in the USA, didn't spin nearly as much. Just an observation from an OBS Silverado Z71 4x4 G80 and 05 Suburban Z71 4x4 G80 owner....

Omg! Get me someone that can drive that truck!!!!

The G80 gets a bad rap but ive had 3 trucks with it and its been nothing but smooth sailing. 2 of them were off road and the other a 2wd lowered truck on nitrous.

The first 40 seconds made me laugh in my ZR2. XD

With at4, you can get 6.2 as well... and I picked it...

I don't have any of those, i just love watching you guys!!

Awesome review, always enjoy watching the classic Duo Andre and Nathan. 😎

Makes me upset the Tahoe Z71 doesn't come with the limited slip differential! Are you going to do a comparison of Tahoe Z71 and GMC AT4?

Needed to add far more weight added to the bed of the pick to be fair test.... why didn't put the back wheels on scales and add enough to the bed, so they would have the same weight over the back wheels????

Lower control arm IRS looks so low to the ground, solid rear has better clearance

Love the new GMC, but the only two engines I’d consider for something that size is the diesel or the 6.2. Weird they’re not offering either of those. Saving for next year like they did the 19-20 trail boss?

So what exactly is an ELSD, if it's not a traction control system using the brakes then what is it doing? Is it a clutch pack getting squeezed by a magnet? If that's the case, why didn't they just do selectable lockers or a mechanical lsd like a torsion?

At 8:41 he said " stop talking about my weight"

THE 2022 AT4 IS COMING WITH 6.2L V8

I could go up that hill with my passport.

I still prefer front and rear lockers but had many g80s

Wonder if the Acadia (a slightly more reasonable price/size) would fare the same.

While the heavier SUV wins, it will be interesting to see you guys do this same test with the upcoming GMC Hummer EV pickup, instead of the Silverado Trail Boss

In my humble opinion, if the Chevy truck had A SOLID FRONT AXLE THAT SETUP CAN ENHANCE THE TRACTION OVER BIG BUMPS AND HILLS AS WELL AS GAIN MORE TORQUE FROM THE DIFFERENTIAL. I CAN MENTION THERE ARE FEWER PARTS OF THE POWER WHICH IS TRANSFERRED THROUGH. FRONT SOLID AXLES ARE EXTREMELY DURABLE THAN MOST IFS axles and on top of that it can be easily fixed and changed in comparison to IFS. I would advice CHEVY Department to think of providing this truck with front solid axles. It is a good truck. If Chevy Department can offer two options for the market (option 1 a front beam axle and option 2 IFS) .I think they will boost their sale.

The latest and greatest #TFL

Great video. Next time try airing down the tires to improve your contract patch. I really enjoyed it.

Love your shows! Thanks for all you guys do! Please Please Please do a comparison of the 2021 Tahoe Z71 vs the 2021 Yukon AT4 off-roading to compare the LSD (is it even an LSD?) G86 differential (it is not the G80 apparently) on the Tahoe vs the eLSD G96 differential option upgrade on the Yukon AT4 (NOT available on the Tahoe). I have the 2021 Tahoe Z71 you can use for the show...I also have the first King Shocks (thus no air shocks). So maybe that would be fun to compare too...air shocks vs upgrading the shocks (like King, Fox, etc)? I sold my Jeep rubicon for the Tahoe Z71 as I needed a tow vehicle, but still want some off roading ability...

I hate air suspension, yeah ground clearance but zero wheel travel.

The SUV has rear weight advantage. The rear tires can dig in more

The extra weight in the back of the Yukon helps give more traction than the trail boss.

GM is really stepping up!!!

sometimes more rubber is better, like on hard pack... ive found that "mudders " grip rock and hard pack very poorly and as much as i appreciate the two wheel drive test its the Opposite of what off roaders do which is "Tread lightly" maybe a TFL trail maintenance day is in order, help keep the trail consistent and open for future use... i cant help but feel we were part of the reason those other trails closed

6.2 is now the only engine for the at4 lmao

I have an AT4 (19) Sierra. Considering the Yukon but I really don't like the low hanging rear control arms. Benefits of independent rear suspension aside, those control arms look like a liability when off road. Granted 90% won't go off road, but they look odd.

*Sometimes* folks it’s the operator, not the machine. I’m just saying.