2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box: Silver extended cab long box pickup truck side profile

Side profile of a silver extended cab long box pickup truck with visible front and rear wheels, prominent cargo bed, and detailed door and window outlines.

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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