Chevrolet Duramax V8 6.6 L Diesel Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, Automatic Transmission, 5600 lb Front Axle, 6200 lb Rears, 10000 lb GVWR, 265/60/20, Spring Suspension, 168 in Wheelbase, 57 in Cab to Axle, 107 in Cab to End of Frame