91 pasenger front window rocks when part way down

7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
7,387
2,745
194
Kearney, NE
It's a 1991 hatchback with power windows. It's annoying when I do not want the window down all the way. What do I do to fix it? The rectangle moves around the guide bar.
 
Yes, I'm pretty sure the bolts are good. Both sides (both front door's glass) rock a bit if the window is down part way. The square sider seems to move around the solidly mounted slider shaft. Is this normal or is there maybe a plastic padding piece worn out or missing??