Cat 3126 6 Cylinder 7.2 L Diesel Engine, 2001 US EPA Label, Air Conditioner, Cruise Control, 7-Speed Manual Transmission, 8500 lb Front Axle, 17500 lb Rears, 26000 lb GVWR, steel, 245/70R19.5 Front Tires, 245/70R19.5 Rear Tires, Spring Suspension, 194 in Wheelbase, Supreme Co. 16 ft 3 in Body