I looked in fusick catalog and I can't find any weatherstrips for the rear window and windshield for my 72 cs. I see it for the roof rail and doors. They do make it right? If so can someone tell me the name of it. I wouldn't think you use weatherstrip adhesive without the actual weatherstrip. Thanks..

 

It's not a weatherstrip as used on the side windows; it is a caulk-like material. Most auto parts stores carry it.

 

Those windows are glued in. There is no weatherstrip. The butyl tape shown above is the easiest way to do it. I've used this on a number of cars with no problems. The factory method is to use urethane adhesive from a caulking tube. The Fisher Body Manual shows how to install the glass this way.