Here Is Why The GMC Yukon Is The Most Reliable Car Ever Made 

This is indeed a GMT800'S with threatening Auras moment

These engines were neutered in the Yukon/suburban applications due to the torque management to help the life of the transmission. In the Silverado, the 8.1 was paired with the Allison 1000 which allows significantly better performance

Far from the most reliable vehicle ever made.

I had a 2002 Yukon XL that I held onto forever, took me to my first day of pre school, learned how to work on cars with it, learned how to drive with it, drove it to my last day of Graduate School, got it to 370,000 miles with original transmission and engine. It saved my life in a head on collision with an intoxicated driver at highway speed, I will miss it forever.

And then Land Cruiser enters the chat with 1,000,000 miles

The 4.10’s with the 8.1 is rated for 11k towing. Probably a bit peppier too. I had a 2500 Burb with the 6.0 and 4.10’s on 33’s and it had plenty of passing power at sea level, it wasn’t that sprightly at CO elevations but not terrible either honestly.

The GMT800 in general, is the most reliable vehicle ever made. This particular one is pretty much the holy grail when it comes to GMT800s too

0 to 60 and quarter mile times are what they are. The Giant Beast is still fine after 300,000 miles is the story here.

Come on Tommy, even a 2018 Tahoe RST with the brembo upgrade is still 70 to 0 in 188ft, cut the old girl some slack she stopped well, idk where you were getting 110ft, that's sports sedan territory.

For those of us that tow with a family, I really wish they would bring back the 3/4 ton suburban / Yukon

I just bought my brothers ‘03 Yukon a few hours ago. It’s been 4 different peoples in the family over the last decade. Now it’s mine, it’s got 320k miles, no rust, perfect frame.

We own this exact Yukon XL 2500 with the 8.1/4.10 gears.

You should check the throttle pedal support bracket on the firewall. If the pedal touches the floor it is bent and you wont get wide open throttle. I have fixed a lot of these that had low power because they never get to wide open throttle.

I owned a 2006 2500 Chevy Suburban with the 6.0L and 4L80 trans (bought with 120K miles on it). It is still one of my favorite vehicles ever! I did a lot of work to it, but the best thing I did was a tune on the PCM. That not only woke up the engine but my fuel economy jumped from 10-11 city to 13-14 city and from 15 hwy to 18 hwy, consistently. I live in Utah (nearly same elevation as you guys) and was always happy with it performance after the tune. The best part was I could almost make it from my place in Utah to my sister's place in San Diego on one tank of fuel after the tune.

Got my GMC Yukon Denali XL 9 yrs. ago. It's an '03. Got it for a good deal. It's got about 235,000 miles on it now. Because it's a Denali package, it's got all the bells & whistles in it & out. And it's also got the 6.0 liter engine. I'll never sell it. Best vehicle I ever owned

I have a 2006 Yukon xl 2500 , 8.1 & 373’s. Really shines on the open highway. Play the throttle to avoid downshifting and it pulls like my 7.3 excursion. Surprisingly sporty .

Tommy and Brendan work so well together with both humor and professionalism. I LOVE these videos. Thank you guys.

My son-in-law and daughter had pretty much that exact one & around 250,000 - 300,000 miles the transmission went out, but with that many miles you would kinda expect something like that to happen.

I am a Ford Fan Brendan but I have fallen hook line and sinker for your Yukon XL 8.1.

“I’ll have to bleep that…” and the little chuckle😂 that was so funny