Duramax V8 6.6 L Diesel 350 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, Allison Automatic Transmission, 7500 lb Front Axle, 13500 lb Rears, 19500 lb GVWR, 225/70R19.5, Spring Suspension, 168 in Wheelbase, Airflo 9 ft Long x 1 ft 4 in High Steel Body, Flat Bed, Ball