V10 6.8 L Gasoline Engine, 2015 US EPA Label, Automatic Transmission, 6500 lb Front Axle, 12000 lb Rears, 16500 lb GVWR, 245/70R19.5 Front Tires, 245/70R19.5 Rear Tires, Spring Suspension, 165 in Wheelbase, Rugby 11 ft 2 in Long x 18 in High Steel Body .