Well that's funny, I actually have that felt seal and bumper that you sent a link to. Thought it was an incorrect part. So the thin rubber goes into the pocket and felt goes on the outside of the pocket and that is the bumper. Vedy intadesting,,, Sgt Shultz would say


1952 GMC
Starting with a basket case
In the Project Journals
1967 GTO
1967 Firebird