DownTheAvenue wrote:
Internet search says the curb weight of your vehicle is from 5269 to 6074 lbs. Not knowing the actual weight (weighing it as previously suggested is wise), lets assume it weighs the maximum of 6074 lbs. Gross vehicle weight rating is 7,200 lbs. minus the curb weight of 6074 lbs. that leaves a payload of 1126 lbs. before you add fuel, passengers, and gear. Your vehicle has a 31 gallon gas tank times 6 lbs per gallon equals 186 lbs. now leaving available payload of 940 lbs.
As a general statement this isn't quite the case as most vehicle manufacturers, GM being one, include a full fuel tank in their vehicle base weight calculation so there's no need to doubly account for it. Regardless, the OP would be wise to do as I suggested earlier by
weighing the vehicle with a full fuel tank, preferably with all the weight distribution parts sitting in the back of the truck at the time so the scale reading you get will be just that much more accurate. If you don't yet have a WD system add 100 lbs as an average to whatever scale reading you get. Once you have the scale reading subtract the weight of anyone who may be in the vehicle at the time and the resulting number will be your truck's real world base weight,
regardless of what the door jamb sticker may indicate. Subtract this real world number from the truck's GVWR and you'll then have a definitive number that represents the truck's
actual payload capacity - i.e. that which you will use to account for the weight of
everything added to the truck when towing - people, cargo, and any trailer tongue weight transferred to the truck once the trailer coupler is dropped on to the hitch ball. With something this important you want to
know what you're dealing with, not just be guessing, and
weighing the truck as I've just described is the only way to know for sure.
Do this and my bet is the OP will realize his Sub is not as "tricked out" as he seems to believe but rather is typical of a light weight 1/2 ton truck - i.e. not a whole lot of actual payload capacity and certainly not anywhere near enough to allow him to use the truck's full GCWR. Assume he does weigh his truck, calculates the numbers, and after accounting for the weight of everyone and everything he may add to the truck in terms of cargo while towing he finds he has say 750 lbs of available payload capacity left to account for any tongue weight transferred to the truck from the trailer. If that 750 lbs represents 13% of the trailer's gross weight then that means the trailer's GVW - i.e. it's total weight, fully loaded and ready to camp - can't be any more than 5800 lbs, which is FAR less than the loaded weight of the trailer described at the beginning of this discussion. Bottom line - with this Sub as a tow vehicle the OP should restrict their choices to trailers weighing less than 6000 lbs fully loaded and ready to camp, or with a dry sticker weight of about 5000 lbs ... anything else would be just too much. :(
This coming from one who has been towing for the last 10 years with GM's ubiquitous 5.3L gasser. ;)