Well I have to tow a uhaul 6x12 enclosed trailer with a couch, love seat, and a 07 gsxr 1000 motorcycle. I will be towing from Florida to Arkansas 14.5hrs and was wondering if I have anything to worry about transmission wise. Will it hold up with no worries, do I leave it in tow haul mode the whole way even at highway speeds or just in town. Shouldn't be a whole lot of weight really and should I put stock wheels back on or will the 26" be ok just drink more gas. Sorry if these questions sound dumb I'm use to towing with a diesel truck. Yukon is 2wd with with 60k miles no corvette servos or anything yet.