6.0 L V8 Gasoline Engine, 2009 US EPA Label, Automatic Transmission, Air Conditioner, Power Windows, 12000 lb GVWR, 225/75R17 Tires

GM V8 6.0 L Gasoline Engine, 2008 US EPA Label, Air Conditioner, Power Windows, Automatic Transmission, 5360 lb Front Axle, 9880 lb Rears, 14500 lb GVWR, 225/70R19.5, Spring Suspension, 132 in Wheelbase

V8 6.7 L Diesel Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, Automatic Transmission, 7000 lb Front Axle, 14706 lb Rears, 19500 lb GVWR, 225/70R19.5, Spring Suspension, 165 in Wheelbase, 84 in Cab to Axle, 132 in Cab to End of Frame

6 Cylinder 6.4 L Diesel 230 hp Engine, 15 Engine hrs, Automated Transmission, 10410 lb Front Axle, 19220 lb Rears, 29630 lb GVWR, 295/75R22.5 Front Tires, 275/80R22.5 Rear Tires, Spring Suspension, 270 in Wheelbase, 204 in Cab to Axle, 322 in Cab to End of Frame