2011 GMC Sierra Heavy Duty Pickups to Debut at NTEA Work Truck Show
The new 2011 GMC Sierra 2500 and 3500 Heavy Duty pickup trucks will debut at the NTEA Work Truck Show next month in St. Louis, Mo.
The Sierra HD rigs will be virtually identical to the 2011 Chevrolet Silverado Heavy Duty pickups that debuted at the Chicago Auto Show. A unique, upscale Sierra Denali model is expected to join the GMC lineup.
We'll be in St. Louis live for the reveal.

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