perhaps check with Bernbaum ,Roberts or Steele Rubber products to see what they have.

Roachman,

The youtube name is ihazwings.  Search YouTube for 1941 Plymouth Restoration #13.
I think video #13 is the one you will want to see. 

Roachman,
Some fellow from Calif. did a series of videos on YouTube when he rebuild his '41 coupe.
If I recall correctly, he covered the installation of the door window felt/channel while one of
his doors was sitting (it appeared to be in the video) on his (or his wife's) dining room table.
Let me look back and see if I can find the link or name of the YouTuber for you.  It seems
that there were about 15 or so videos on his car restoration. 

I am almost finished with my 1941 Plymouth business coupe restoration.  A question we have concerns felt channel for door window.  I have installed the channel that runs along the top of glass and down into the door at the backend.  We have installed beltline sweeper, but cannot figure out if felt liner goes into the channel between FRONT of door window and the vent window.  Looks like there was some kind of canvas material used near top but not all the down.

Does anyone out there in MOPAR Land have any information or link to information to address this question?

Pat Corcoran
Occidental, CA