Hi forum, this is my first post and it has to be a question. The rubber seal which is attached the both rear passenger windows (they clip open, its a compact) are perished and ripped especially on the B post where they provide a seal with the doors. They are attached to the windows and so my question is. In order to renew them must I buy the window with them already attached or can the old seals be removed from the window glass and be replaced with new seals. Any advice appreciated.