Detroit 60 Series 6 Cylinder 12.7 L Diesel 470 hp Engine, 1996 US EPA Label, Eaton Fuller 13-Speed Transmission, Differential Lock, 13220 lb Front Axle, 45400 lb Rears, 54600 lb GVWR, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 290 in Wheelbase, 22 ft x 102 in Bed, Pintle Hitch