Window regulator trouble

[68Timber]

I'm having trouble with a new window regulator and can't figure it out. I just put new weather stripping and rebuilt vent windows in my doors, this is on my 85 and they're manual windows. The original regulators had wheels that wouldn't free up so I replaced them with AC Delco Professional series regulators from rockauto. Both sides went up and down great until I put the door panels on. Passenger side is fine but the drivers side binds up when the window is halfway up. It starts trying to come out of track, to the outside of the door. It doesn't do this with the door panel off. After a bunch of fiddling with it trying to figure it out I ended up bending the regulator. I've got a new one on the way. Anyone seen anything like this before?