My driver door upper stripping is leaking water, because it had separated at the top of the windshield. Where can I buy new stripping? I was surprised to see auto parts store don't carry them. Or is there anyway I could glue the existing strip where it separated? If I need new, whats the best cleaner the clean gum of the old paste?

 

These guys are a goldmine for what you are looking for.

http://www.lmctruck.com