So i have a problem with the weather stripping in my car every time i take it through a wash or wash it my self i get a leak from the quarter window. I have a 1984 Bonneville, dose anyone know where i can get replacement stripping for the windows and doors? this would be much appreciated.

PS
Is it easy to self install, or would it be better to maybe go to a windshield repair man?

If you know were the leak is you could just make sure it'* really dry then u either black or clear silicone caulking

Wouldn't me caulking it just completely seal the window and then not allow me to actually open or use the window? Thats my main goal is to be able to use them when i want

Since that Bonneville is a G-body, try looking for catalogs or websites for G-bodies.

Check out Steele products...
https://secure.steelerubber.com/