I had to cut-down the passenger-side wind window just like the driver's side but the cast housing for the gear-drive on the vent window crank was broken, allowing the worm gear to push itself out of mesh whenever it was cranked. Thoughts of just putting it in, inoperative, to get closer to completion crossed my mind but they also didn't sit well and went by the wayside as I tried to come up with a fix.Epoxying everything back together might hold, and then again it might not. A better fix was to lengthen the rear backing plate, having it grab around the side to keep the worm gear in mesh with the drive and also have it wrap around the bottom to hold the broken housing together. Then drill out the top rivet and replace it with a bolt. Cinching-down the bolt in the top rivet hole applies clamping forces to pull the rear support bushing close to the drive and and pulls everything tight around the bottom at the same time. Everything pulled right into place with the tightening of just the one bolt. More importantly it stayed there while in operation. I can comfortably put this thing back inside the door without having to worry about pulling it back apart later.