According to the GM towing guide, that I have, the trailer, based on how it is loaded, could be within the towing limits of a GM 2500HD. But that can be said of all trucks and trailers. The reason that kakampers went with the 4500 Kodiak is because their Bighorn was loaded too heavy, even for a 1 ton dually. According to GM the difference between the 2500HD and the 3500 is 1000lbs of trailer weight. The allowable pin weight is determined by the RGAWR and how you load your truck with all the other things that we throw in the bed and back seat. The towing guide lists the 2500HD max trailer weight as 15,500 lbs, the 3500 max is 16,500 lbs. Truth be known, my guess is that 90% of the trucks out there, both 2500 and 3500 are towing overweight. Each person has to make their own decision on what they are comfortable with. There is risk in anything we do. It comes down to what is and what is not an acceptable risk and we can only make those decisions for ourselves.