Clean CARFAX. 2012 GMC Sierra 2500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD.Recent Arrival!Reviews:* Impressive hauling and towing capabilities; refined and quiet ride; solid build quality; responsive steering; comfortable seats. Source: Edmunds

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　　Audio System With Navigation Am/Fm Stereo With Mp| Tires Lt265/60R20e All-Terrain Blackwall| Mirrors Outside Heated Power-Adjustable Vertical| Denali Preferred Equipment Group Includes Standar| Battery Heavy-Duty Dual 730 Cold-Cranking Amps M| Steel Gray Metallic| Engine Duramax 6.6L Turbo Diesel V8 B20-Diesel C| Customer Dialogue Network| Seats Front Bucket Includes 12-Way Power Driver| Wheels 20 (50.8 Cm) Forged Polished Aluminum| Engine Block Heater| Suspension Package Handling/Trailering Heavy-Dut| Navtraffic Is Available In Over 100 Markets And W| Gvwr 10 000 Lbs. (4536 Kg)| Mirror Inside Rearview Auto-Dimming| Trailering Wiring Provisions For Camper Fifth Wh| Lpo Assist Steps Chromed Tubular 6 Oval| Ebony Perforated Nuance Leather-Appointed Front S| Paint Solid| Exhaust Brake| Transmission Allison 1000 6-Speed Automatic Elec| Rear Axle 3.73 Ratio| Locking/Limited Slip Differential| Four Wheel Drive| Tow Hooks| Tow Hitch| Power Steering| Abs| 4-Wheel Disc Brakes| Aluminum Wheels