6 Cylinder Diesel Engine, Engine Brake, Detroit 12-Speed Automated Transmission, 14320 lb Front Axle, 40000 lb Rears, Meritor MT-40-14X Drive Axles, 2.47:1 Axle Ratio, 54320 lb GVWR, Air Ride Cab, Aluminum Wheels, 295/75R22.5, Air Ride Suspension, 234 in Wheelbase, Thermo King Reefer Unit, Kidron 24 ft x 96 in Wide x Body