GMC Logo2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box: Rear view of extended cab long box pickup with tailgate and taillights

Rear view of extended cab long box pickup with tailgate and taillights

Rear view of an extended cab long box pickup truck emphasizing the tailgate, taillights, side windows, and rear bumper details.

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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