Yukon Owner

Thanks a lot--I appreciate it!

Thanks, I appreciate the info, but still don't understand why all other factors being the same (same truck, same cab & bed, same trim level, same gears, both 4WD), why the 5.3L has a higher tow rating than the 6.2L.

I want to change my 2015 GMC Yukon for a 2021 Yukon or Sierra to get better towing capability. Would someone please explain to me why the 5.3L engine (rated at 355 hp & 383 lb ft of torque) is rated for a higher towing capability (8,400 lbs towing for the Yukon, 9,200 lbs for the Sierra SLT) than the 6.2L engine (rated at 420 hp & 460 lb ft of torque) (8,200 lbs towing for the Yukon, 8,800 lbs for the Sierra SLT) if both have the same 10-speed transmission, 3.23 gear ratio, and 4WD? I know there's probably a few hundred pounds difference in weight between the 5.3L and 6.2L engines, but you would think 65 hp and 73 lb ft of torque would provide some increase in towing capability. Thanks in advance for the info! I want to tow an enclosed car trailer, don't want to go diesel (because I'll use the truck as a daily driver), but want better towing capability than my 2015 Yukon with the 5.3L. I was going to buy a 6.2L, but I'm trying to understand why I won't get better towing capability (at least not on paper) than the 5.3L.