Camper or camp trailer? 5th wheel? My dad does his 26ft 5th wheel and flat tows his jeep behind with an 03 Duramax, no problems at all. Power wise you should be fine, depending on what your definition of heavy, huge is (actual wet weight). If it is a camper, you should be fine. If it is trailer, double towing two bumper pull units can be sketchy, especially depending on length. As for length, Utah also has a law of 65' total length, so pulling the jeep on a trailer would most likely put you over that. You can supposedly get a permit for more length if you pay the state money. Do a search on here for double towing or something like that and you will find old threads on it. Personally, I would only double tow stuff that long and that heavy with a 5th wheel trailer.