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- 2007 Sierra 1500 III (GMT900) Extended Cab Long Box
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- Front angle view of pickup truck with extended cab and long box
GMC2007 GMC Sierra 1500 III (GMT900) Extended Cab Long Box in Onyx Black: Front angle view of pickup truck with extended cab and long boxPickup truck front angle showing distinctive grille, headlamps, side mirrors, extended cab four-door design, and long cargo box rear in black finish.
View Dimensions of the 2007 GMC Sierra 1500 III (GMT900) Extended Cab Long Box
View 24 images of the 2007 GMC Sierra 1500 III (GMT900) Extended Cab Long Box
