[TsgtE662]

Rod - I don't think they do anymore. The only auto plants around here that I know of is the Chrysler plant in Fenton and the F**d plant a couple of miles from me. My 70 GMC was made here, my '92 came from Indiana.
I posted a thread a while back asking for VIN info for basically all GMC trucks to try and compile as accurate as possible a decoding list for everybody to be able to use. But not very many responded to it. I would still like to get one made up.
I would think that with so many people on here who know so much about these trucks we could do it and maybe end up getting included on the web site along with the Chevy decoder part. We would probably have the only site that has it.