Machine description: Cummins 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 230 hp Engine, 6-Speed Automatic Transmission, 7000 lb Front Axle, 13500 lb Rears, 19500 lb GVWR, 225/70R19.5, Spring Suspension, 168 in Wheelbase LOCA... more info about the 2012 Dodge RAM 5500HD.