GMC Sierra AT4x Model Lineup
AT4 3.0L Duramax® Turbo-Diesel Engine with 10-Speed Automatic Transmission 13.4″ Diagonal Center Touchscreen and 12.3″ Diagonal Driver Information Center 2″ Factory Lift with Off-Road Suspension and Rancho Monotube Shocks Unique Jet Black Interior with Kalahari Accents and Heated and Ventilated Perforated Front Leather Seating Surfaces Two-speed Autotrac Transfer Case, Automatic Locking Rear Differential and Underbody…