iamdub
Full Access Member
Well Tom, we know your Denali can tow 7800 or 7900 pounds maximum according to the manuals for your year. This might have been during the time the Japanese auto makers were publishing outlandish capacities for their vehicles.
I'm now curious as to why the 2009 and 2010 Yukon XL Denalis with AWD can pull 100 pounds more? And now see that the 2007 Yukon XL Denali AWD was rated for 7700 pounds.
Maybe they were using different u-joints?
It's not always about the weight that it can tow due to power, gearing, etc. It's also what it can control. That extra 100 pounds is probably because it's AWD. 4WDs usually have a slightly less towing capacity because the extra weight of the 4WD components absorbs some of the vehicle's total capacity. I'm sure the figure they arrived at for the AWD is the result of subtracting the capacity of the 4WD from the 2WD due to the weight difference but then adding the capacity that the AWD is capable of, which ends up at only 100 pounds over the 2WD's capacity.