Cat C12 12.0 L Diesel Engine, Engine Brake, Meritor 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, 295/75R22.5, Air Ride Suspension, 248 in Wheelbase, 20 ft x 96 in Bed, Pintle Hitch MILEAGE IN EXCESS OF ODOMETER MECHANICAL LIMITS