Mack MP8 6 Cylinder 12.8 L Diesel 338 hp Engine, 2008 US EPA Label, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, 9072 kg Front Axle, 31229 kg Rears, 40371 lb GVWR, Air Ride Cab, Aluminum Wheels, 445/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Double Frame, Hendrickson Air Ride Suspension, 285 in Wheelbase, 210 in Cab to Axle, 295 in Cab to End of Frame, Hour Meter Reads 16768