V8 6.2 L Gasoline Engine, 2011 US EPA Label, Automatic Transmission, 4700 lb Front Axle, 9750 lb Rears, 13000 lb GVWR, 245/75R17, Spring Suspension, 176 in Wheelbase, 11 ft x 96 in Bed, Pintle Hitch

V10 6.8 L Gasoline Engine, 2015 US EPA Label, Automatic Transmission, 7000 lb Front Axle, 14706 lb Rears, 19500 lb GVWR, 225/70R19.5, Spring Suspension, 200 in Wheelbase, 11 ft 6 in x 92 in Bed