Machine description: Detroit DD13 6 Cylinder Diesel Engine, 16318 Engine hrs, Engine Brake, Eaton Fuller 10-Speed Manual Transmission, 14700 lb Front Axle, 40000 lb Rears, 3.91:1 Axle Ratio, 54700 lb GVWR, Air Ride Cab, A... more info about the 2011 Western Star 4900SA.