Cat C12 6 Cylinder 11.9 L Diesel Engine, 1999 US EPA Label, Engine Brake, Eaton Fuller 13-Speed Manual Transmission, Differential Lock, 18000 lb Front Axle, 40000 lb Rears, 58000 lb GVWR, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Dual Steering Boxes, Hendrickson Haulmaax Rubber over Walking Beam Suspension, 228 in Wheelbase, PTO, 14 ft Long Steel Body, Pintle Hitch, Hour Meter Reads 15401