Machine description: GM V8 8.1 L Gasoline 340 hp Engine, 2005 US EPA Label, Allison M75 5-Speed Automatic Transmission, 6250 lb Front Axle, 13500 lb Rears, 5.13:1 Axle Ratio, 16000 lb GVWR, 225/70R19.5 Front Tires, 225/70... more info about the 2005 Chevrolet C4500.