GMC Logo2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box: Side profile of extended cab long box truck with chrome wheels

Side profile of extended cab long box truck with chrome wheels

Side profile view of a heavy-duty truck featuring an extended cab and a long cargo bed, chrome wheels, and 4x4 drivetrain.

View Dimensions of the 2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box

View 30 images of the 2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box

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