Cat 6 Cylinder Diesel Engine, Engine Brake, Eaton Fuller 9-Speed Manual Transmission, 12000 lb Front Axle, 38000 lb Rears, 3.91:1 Axle Ratio, 50000 lb GVWR, Aluminum Outer Wheels, 11R22.5, Air Ride Suspension, 235 in Wheelbase, PTO, 16 ft Long x 3 ft 6 in High Body, Round Bottom, Electric Roll Tarp, Air High-Lift Tailgate, Pintle Hitch