GMC Logo2007 GMC Sierra 3500HD III (GMT900) Extended Cab Long Box in Onyx Black: Extended cab long box pickup with dual rear wheels and 4x4 drivetrain

Extended cab long box pickup with dual rear wheels and 4x4 drivetrain

Heavy-duty extended cab pickup featuring a long cargo bed, dual rear wheels for enhanced load capacity, and 4x4 drivetrain for off-road capability.

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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