6 Cylinder Diesel Engine, 4204 Engine hrs, Engine Brake, 10-Speed Manual Transmission, Differential Lock, 12001 lb Front Axle, 38004 lb Rears, 50009 lb GVWR, Air Ride Cab, 11R22.5, Air Ride Suspension, 200 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks