If the window is the yellowed/nasty '90 OEM, it was just time to go... she needed a new one anyway.
You're supposed to either unzip the POS window or fold a foam noodle inside of it when you put it down. Otherwise the window can develop a crease and eventually break. At the very least it'll get scratched all to hell.
Having said that, I got tired of unzipping the plastic window and stopped giving a shit about it altogether after I couldn't see through it. It never cracked, but it looked like hell. And now I have glass.![]()