Jeff, Ithink you'll be pretty close to the limit when it comes to GVRW on your truck. Trailers always weigh more than their published weights and things are finally being done to make manufacturers put a sticker on that is more realistic. They are supposed to weigh the rigs after the build and the sticker will then indicate how much carrying capacity they have left. You still have to do the math and deduct that number from the trailer GVRW to determine empty weight. Now back to the question. While towing, your truck will more than likely be in 4th gear and not in OD. Your transmission will be the weak link. But there are other area's that are being pushed to their limits too. Brakes, springs, axles and tire capacities need to be considered. You also have to add the weight of all occupants, fuel, any other cargo, the dog and stuff in the truck bed. A good idea would be to take your truck to a scale ready to tow and see what it weighs. Subtract that from the trucks GVRW and see whats left. Compare that number to the hitch weight and add a couple hundred pounds for stuff in the nose of the trailer. Good luck with your decision.