My 95 Ranger came with an ARE fiberglass tonneau cover on it when I got it 10 years ago. The cover itself is in near perfect shape, but the weatherstripping is falling off of the lid. What is the best repair option? Is this stuff custom pressed or trim to fit? It seems like this is a simple enough question, but i can't seem to get any real answers, just salesmen trying to push me into a new cover. Just need to replace the gasket/weatherstrip!