I opened up the door panel of my 79 firebird because the window on the drivers side seemed to have been getting scratched. Upon further inspection I saw that there are three pieces of "fabric" that almost resemble carpet on the door panel's inside that seem to touch the glass as it goes down. These pieces are worn out and the metal that once glued them in place is scratching the window. Tried to research what these things are but no luck. Anybody have any idea?