Ive always been under the impression that if its a stick shift 2wd its fine. My wifes grandparents tow an 2003 F150 Lariat with a stick shift behind their rig and have towed it for thousands of miles and havent had an issue. My boss towed his 02 Ram with a stick all the way from florida on a tow bar and it was fine. Maybe check with your local rv dealer and ask how many stick pickups their customers tow and if they have heard of any problems. Maybe someone in the towing/trailer section of the forum may be of assistance, theres lots of folks there that are in the rv business that would know for sure.