V8 6.6 L Diesel Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, Exhaust Brake, Automatic Transmission, 5200 lb Front Axle, 9750 lb Rears, 13200 lb GVWR, 235/80R17 Front Tires, 245/75R17 Rear Tires, Spring Suspension, 170 in Wheelbase, 9 ft 6 in x 96 in Bed