GMC Logo2007 GMC Sierra 3500HD III (GMT900) Extended Cab Long Box in Deep Blue Metallic: Extended cab heavy-duty pickup with long cargo bed and dual rear wheels

Extended cab heavy-duty pickup with long cargo bed and dual rear wheels

Heavy-duty pickup truck with an extended four-door cab, long cargo box, and dual rear wheels designed for enhanced load capacity and durability.

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

View 28 images of the 2007 GMC Sierra 3500HD III (GMT900) Extended Cab Long Box

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