Offering even more power and luxury for 2015, our GMC Sierra 3500HD Crew Cab Dually SLT 4X4 is presented in Onyx Black! Powered by a TurboCharged 6.6 Liter Diesel V8 offering 397hp paired with an innovative 6 Speed Allison Automatic transmission. This Four Wheel Drive can handle your most challenging job with ease and exceptional efficiency! Our Sierra 3500 is also built strong with a massive payload/towing capacity, an automatic locking rear differential, and a heavy-duty trailering package that further augments control. The firm stance commands the road with prominent alloy wheels, a sunroof, running board, a durable bedliner, and chrome trim. You'll appreciate this SLT's cargo box illumination, remote ignition, a power outlet, rearview camera, dual-zone automatic climate control, power-adjustable pedals, and more! Settle into heated leather seats and admire the touchscreen with GMC IntelliLink, smartphone integration, Bluetooth, voice controls, available WiFi hotspots, and more! You'll love listening to your favorite tunes on an upgraded sound system with CD and available satellite radio as you get the job done in this sturdy truck. Of course, safety is always the number one priority with GMC. Supplied with ABS, stability/traction control, a multitude of airbags, and even OnStar with on-demand roadside assistance to allow you to travel with added peace of mind. This Sierra 3500HD is an impressive, powerful choice! Save this Page and Call for Availability. We Know You Will Enjoy Your Test Drive Towards Ownership. GUARANTEED CREDIT APPROVAL (W.C.A) PROVIDE: *RECENT PAYSTUB OR BANK STATMENT *PROOF OF RESIDENCY *LOW DOWN PAYMENT