Detroit DD13 12.8 L Diesel 500 hp Engine, 16522 Engine hrs, Engine Brake, Eaton Fuller FRO-15210C 10-Speed Manual Transmission, 12350 lb Front Axle, 40000 lb Rears, Spicer DS404 Drive Axles, 3.70:1 Axle Ratio, 11R22.5 Front Tires, 295/75R22.5 Rear Tires, Airliner Suspension, 178 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel