avvidclif
Well-known member
It was the Duramax however not positive if it was the 6.6L. The issue isn't with the tow weight it's with the TV payload which is 2793lbs. max but this number isn't based on the extra 6.6L weight. I have the same truck and my sticker states 2214lbs. max payload dry weight and 10,000 GCWR. My loaded weight: full fuel, generator in bed, 2 passengers + driver is 8500 lbs leaving me 1500 lbs. for 5er hitch weight. With a trailer GCWR of 13,500 the hitch is 2700 lbs. @ 20% putting the payload over by 1200 lbs.
You're confusing GVWR (10K) with Payload (RAWR). Payload is what counts with a 5th wheel and you have to go by the number on your truck not the "pie-in-the-sky" brochure numbers. It takes into account your options and engine.