Cat C-15 Engine, Engine Brake, Eaton Fuller Manual Transmission, Spring Type Suspension, Dual Steering Boxes, Double Frame, Dual Fuel Tanks, 244" Wheel Base, 6x4, 20,000 lb. Front Axle, 46,000 lb. Rears, 66,000 lb. GVWR, Air Conditioning, Cruise Control, Heated Mirrors, Air Ride Drivers Seat, Tilt Steering Wheel