If it's what I am thinking of; that bracket is meant to rub the glass and to prevent any rattles. From the factory it was covered with a "fuzzy" felt strip that was glued on with contact cement. If you need the strip I think I have an NOS piece of it, the strip will wear off or fall off over time and I think that is what has happened with yours.
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Peter Serio
Owner, Precision Pontiac
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Peter Serio
Owner, Precision Pontiac
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