Professional Grade describes our Diesel-Powered 2011 GMC Sierra 2500HD SLT Crew Cab 4X4 shown off in White. Powered by a proven 6.6 Liter Duramax TurboCharged Diesel V8 offering 397hp and 765lb-ft. Of torque with an Allison 1000 6 Speed Automatic transmission for impressive pulling power. This Four Wheel Drive team works hard but also looks great with running boards, chrome bumpers, a power sliding rear window, fog lamps, and a tough bedliner. Step up into the SLT trim and enjoy comfortable heated leather front seats, passenger climate control, and a multifunction leather-wrapped steering wheel. Set the tone for the work day with the 7-speaker AM/FM/CD Bose premium audio system with MP3 and available XM radio. In addition to its size and heft, the GMC Sierra 2500HD carries such standard safety equipment as ABS, traction and stability control, daytime running lights, and a post-collision safety system. Work smarter not harder with this GMC Sierra 2500HD SLT! Save this Page and Call for Availability. We Know You Will Enjoy Your Test Drive Towards Ownership!