Chrome mesh front grille with prominent GMC logo, quad headlight clusters, extended cab with four doors, and chrome door handles and side mirrors. Robust tires and wheels visible, emphasizing a heavy-duty truck design.
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