For 25 plus years the passenger side window has not opened and now I see why. The window never moved since I've had it (regulator just made a popping sound). I managed to get the regulator off the glass to try it... the motor works (old and worn) just enough but it worked. So the window was stuck in the window channel and the motor wasn't strong enough to pull it down, even with my help. Moving the window up and down I can see the glass wants to jump in the car when going up and won't go into the top track unless I guide it in. When moving it down the front top metal portion of the guide is rubbing the glass and even with some adjustment I can't seem to stop it from rubbing at some point (the rear guide looks ok). Maybe the front guide is bent? Going to try to adjust again but damn I tried a lot. I don't want to ruin the new motor I'm about to install so any help or experience would be great. How much clearance should there be at the front guide to glass? Help I'm rambling