2007 GMC Sierra 3500HD III (GMT900) Extended Cab Long Box in Stealth Gray Metallic: Extended cab pickup with long box and dual rear wheels, 4x4 drivetrain

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

Heavy-duty pickup with extended crew cab, long cargo bed, dual rear wheels (dually), and 4x4 drivetrain, designed for hauling and towing heavy loads with robust build and utility focus.

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