Machine description: 6 Cylinder 6.7 L Diesel Engine, 13807 Engine hrs, Automatic Transmission, 7000 lb Front Axle, 12000 lb Rears, 16500 lb GVWR, 225/70R19.5, Spring Suspension, 198 in Wheelbase, 11 ft 5 in x 96 in Bed AD... more info about the 2012 Ram 4500HD.