No, the engine is great. Just got back from NM a week ago and that little engine is impressive, with or without a load. But I do miss the F250 chassis sometimes when the winds get up....and maybe the brakes. It just felt more stable.

Trying to fight the fever long enough to pay this one off and give to my son next year.

That's what I figured, it is a lot of power out of that little motor, problem is its pushing the capability of the rest of the truck. I'm sure it does fine, just like you said not as confidently as a 3/4 ton would.

I pull a 31 foot 5th wheel with the 6.2 with tow package and 8 speed with no problems. The 6.2 has a lot more HP the the 6.0 and get's a lot better gas mileage. That said I've never had a diesel so I have nothing to compare it too, Although if you get a diesel you have to leave it running no matter were you stop so you can act like a big rig driver and annoy everyone around you with the noise. L.O.L.

As some have mentioned, stopping and suspension are just as important as towing.

Everything I have seen has had either a 6.0 or 6.6 motors. Where do you find the 6.2 gas motors. Thnaks

Ditto, with something as big as a 35' TT

Half ton

Suspension sway/roll plus braking. A half ton towing a larger fiver is just that a half ton maxed out.

Actually the GMC 2500 diesel pickup truck out performed the ford and dodge in all three categories including pay load pulling, clock time and stopping per Motor Trend testing October 2017 issue.

What he said.

Not sure if the 8 sp is still being used with the 6.2 or not. I have it in a 1500 and love the truck except the transmission is giving me a problem. When I google the problem, it seems that it is a chronic problem with the 8 speed. Check it out.

Though question because these new gas engines are powerful. I purchased my duramax in 05 and it was a good decision for me. This truck has been my daily driver and its still going strong. I've been eyeballing those GMC 6.2s because I do not like all the emissions junk on the new diesel trks but I'm too cheap to make the next move. Good Luck!!

Everyone's screaming diesel when they read 35' travel trailer but I think they all glossed over the fact that the op said its a bumper pull not a 5th wheel. Most bumper pull trailers that size only weigh about 8-10k. Yeah its pushing the limits for a 1/2 ton truck but a gasser 3/4t will pull it without issue.
I've driven 1/2t trucks all my life and about 5 years ago I thought I'd change it up and bought a F250 Platinum diesel. Yes its a beast and could probable rip the lid off of hell with a big enough chain but if you don't need a diesel they are expensive to operate. Unloaded the fuel mileage is comparable to it's gas counter part but diesel cost more then gas. Oil changes cost double due to it holding twice the oil and that massive filter, DEF fluid is another little expense everyone overlooks. Average use is 5 gallons every 6-7k miles. Fuel filters need to be changed every 25k or so and ain't cheap. Lastly the diesel option over gas is another 7k or so.
After owning mine for 5 years about the only advantage I see for the diesel is resale value.

Which is negated because they cost significantly more to buy.

The only advantage is motor life and the ablility to pull large machines on trailers. (like backhoes, etc.)