GMC's full integration of the Sierra name into their full-sized truck line-up in 1987 included the one-ton capacity level 3500. The Sierra 3500 was the top capacity pickup was among the GMC vehicles ...

Coinciding with the release of GMC's heavy-duty version of their one-ton truck in 2007 (the GMC 3500HD), the GMC Sierra 3500 Classic was a carry-over of the 2006 Sierra 3500. Available in regular cab, ...