Machine description: Mack AC Diesel 460 hp Engine, Engine Brake, Mack Maxitorque 18-Speed Transmission, Differential Lock, 20000 lb Front Axle, 46000 lb Rears, Aluminum Wheels, 315/80R22.5 Front Tires, 11R24.5 Rear Tires,... more info about the 2007 Mack CHN613.