2013 GMC Sierra SLE 2500 Extended Cab 4x4. 6.0L Vortec Flex Fuel V8. six Gear Automatic Transmission. Summit White Exterior on Ebony Cloth Interior. seventeen Steel Wheels with All Terrain Tires. 40/20/40 Split Front Bench Seat. Locking Rear Differential. Trailer Brake Controller. Engine Block Heater. Snow Plow Prep Package. HD Trailering Equipment. Listing Price Does Not Included Taxes or Licensing....