Isuzu 6HE1XN 6 Cylinder 7.1 L Diesel 200 hp Engine, 1995 US EPA Label, Allison Automatic Transmission, 7060 lb Front Axle, 13680 lb Rears, 19500 lb GVWR, 245/70R19.5 Front Tires, 8R19.5 Rear Tires, Spring Suspension, 236 in Wheelbase, 22 ft x 96 in Wide x 98 in High Body, Walk-Up Ramp