GM overstates 2014 tow ratings by almost 25%

EXSlider400 wrote:
As an update, I have been in contact with GM and we made a deal to trade in my 3.08 on a 3.42 truck at a discount. I upgraded to a Denali so my note is higher but both sides compromised. I will still post all the info and stickers for future questions and/or concerns. Also I need to know if I will truly be over weight with new truck.....

I would suggest a trip to a GM dealership is in order. By now, you should be gun shy of any published information. The door jamb stickers don't lie. They truly represent what the vehicle is rated for regarding weights and loads.
Since you have access to a scale, I would load the trailer in it's condition for camping with all of sundry camping items and pull it across the scale with your existing truck (this will be the last trip like this). What you need is the tongue weight of the trailer without any weight distribution enabled.
When you visit the dealer, open some doors and look for the cargo capacity stickers, subtract the total of tongue weight of the trailer and the weight of the WDH and see what the difference is. You can then figure the weights involved with your truck, adding in passengers, fuel, and cargo carried. If you come up with cargo capacity remaining, you have made everybody happy.
You can't select a towing vehicle in these weight ranges using the gross towing capacity of the vehicle, i.e. you must go by the payload or cargo capacity. You will run out of that capacity long before you reach the maximum towing capacity.

IMO, I would eliminate the guesswork and enjoy a better towing experience by ordering a 2500 series Denali or a 2500 series pickup truck. The assumed small amount of MPG saved vs 1500 would not be worth having the right truck for the use anticipated, i.e. towing the 8000 lb. trailer. Also, when it comes time for resale, the 2500 will be worth more than the 1500.

Good luck with your new truck.