International 6 Cylinder Diesel Engine, Eaton Fuller 13-Speed Transmission, 7258 kg Front Axle, 18144 kg Rears, Aluminum Outer Wheels, 315/80R22.5 Front Tires, 11R22.5 Rear Tires, Spring over Walking Beam Suspension, 230 in Wheelbase, 126 in Cab to Axle, 254 in Cab to End of Frame