2007 GMC Sierra 3500HD III (GMT900) Crew Cab Long Box in Onyx Black: Heavy-duty pickup truck with crew cab, long box, dual rear wheels, and 4x4.

Black heavy-duty pickup truck with crew cab and extended long box, featuring dual rear wheels for extra load capacity and 4x4 drive capability for off-road and tough terrain performance.

View Dimensions of the 2007 GMC Sierra 3500HD III (GMT900) Crew Cab Long Box

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