2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box: Front angle view of an extended cab long box pickup with distinctive grille and headlights

Front angle view of an extended cab long box pickup with distinctive grille and headlights

Front angled perspective highlighting the pickup's large grille with horizontal detail and bold headlight units, showing the extended cab and long cargo bed design.

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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