convertible top ?s
Try Steele Rubber products, they claim to have weather stripping for cars as far back as the 30's. You could even try the dealer, they might be able to track some down collecting dust on a dealers shelf. I had luck going the dealer route, I found 3 fenders (the last 3 in the world from dealer stock one was in the US the others were in Canada and Mexico) for my Aries, and I recently found the last two outer cv (in dealer stock) axles for my 87 Honda.


