6 Cylinder Diesel 430 hp Engine, Exhaust Brake, 16-Speed Manual Transmission, Differential Lock, 40000 lb Rears, 295/80R22.5 Front Tires, 11R22.5 Rear Tires, 8-Bag Air Ride Suspension, 4000 mm Wheelbase, GVM 24.6 t, GCM 50 t