Quote:
Originally Posted by GMCPaul
The 1947-66 trucks used the foam donuts behind the door panels, all the documentation we've seen which is the 1967-72 factory assembly manual and GM Truck master parts catalog show they were not used in 1967-72. We've seem them installed in some 67-72's and have always assumed previous owners added the 47-66 interior door handle foam seals.
Paul Jr @ GMCPauls
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Fwiw I've seen the donuts on some 72 doors that I'm certain were original.