Gasoline Engine, Automatic Transmission, 44000 lb Front Axle, 7900 lb Rears, 10000 lb GVWR, 225/70R19.5 Front Tires, 225/70R19.5 Rear Tires, Spring Suspension, 177 in Wheelbase, Utilimaster 18 ft x 96 in Wide x 85 in High Body