I just bought a '04.5 325 horse / 600 lb. ft. Cummins Dodge 3500 dually four door. I pull a 28' enclosed Classic Dominator trailer. I absolutely LOVE the truck ! It rides like a luxury car, and tows like a Kenworth. Classic enclosed trailers have always been considered to be one of the premier enclosed trailer manufacturers. I've had no problems with mine since I've had it. They've upgraded a bunch of stuff since mine (1998). They are really nice units !!