GMC Logo2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box in Steel Gray Metallic: Front view of extended cab, long box heavy-duty pickup truck

Front view of extended cab, long box heavy-duty pickup truck

Front view of a heavy-duty pickup with extended cab and long bed, featuring a large chrome grille, dual headlights, and robust styling cues.

View Dimensions of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box

View 21 images of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box

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