Machine description: Diesel Engine, Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 25950 lb GVWR, 11R22.5, Spring Suspension, 154 in Wheelbase, PTO, 10 ft Long x 2 ft 6 in High Steel Body, Flat Bed SK REGIST... more info about the 2005 GMC 7500.