Thanks to 66Suburban, I found this out, about the rubber wedge piece that goes onto the speaker, at least the kind like mine:
3838128 (NOS Gm part number)
cushion, mounting plate <- what it is called in the parts book.
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Now, I just need to find one.... HMMNNN.
I've buzzed around a few vendors sites that deal in the NOS parts, nothing listed yet.
-W
p.s. check out this neat site :
GM Parts Wiki a site dedicated to GM parts numbers, scans of old parts books, along with photos of the parts and their boxes/packaging.
