I used a tow dolly to haul a '72 Eldorado about 400mi (front wheel drive) and a tow dolly to haul a '62 C-10 from Alabama to NW Indiana. I did not disconnect the drive shaft on the truck. The only problem I had in either case was toll booths. Had to be carefull going thru the booths since they are rather narrow. IN both cases we zipped right along at 65mph with no problems, other than re-tightening the straps once.