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

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

Side profile of a heavy-duty pickup truck featuring an extended double door cab, long cargo bed, 4x4 badge, and dual rear wheels indicating extra load capacity.

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

Small red car