GMC Logo2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Standard Box in Summit White: Front-side view of extended cab pickup with chrome grille and standard box

Front-side view of extended cab pickup with chrome grille and standard box

White pickup truck shown from front-side angle featuring extended cab, chrome grille, standard cargo box, and rugged tires.

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

View 19 images of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Standard Box

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Small red car