Mack E7 6 Cylinder 11.9 L Diesel 460 hp Engine, 1999 US EPA Label, CARB Compliant, 12465 Engine hrs, Engine Brake, Eaton Fuller 18-Speed Transmission, 9072 kg Front Axle, 20866 kg Rears, 40371 kg GVWR, 425/65R22.5 Front Tires, 11R22.5 Rear Tires, Air Lift Pusher Axle, Dual Steering Boxes, Double Frame, Hendrickson Rubber over Walking Beam Suspension, 246 in Wheelbase, 19 ft 6 in Long Body, Heated Box, Triple Tailgate Chutes