GM 6.0 L Gasoline Engine, 2020 US EPA Label, Air Conditioner, Cruise Control, Power Windows, Automatic Transmission, 4300 lb Front Axle, 8600 lb Rears, 12300 lb GVWR, 225/75R16 Front Tires, 225/75R16 Rear Tires, Spring Suspension, 176 in Wheelbase, Supreme 16 ft x 95 in Wide x 78 in High Body, Curbside Door