How to remove vent and windows and mirror
On my 70 duster, I had to remove the door panel, then I used a mirror to see the screw, then reached up with some needle nose pliers(was a little akward putting my whole arm into the door) and unscrewed the nut until I could turn it with my fingers. I believe the window was rolled all the way up at the time. For the vent windows, you have to unscrew the screws that hold the upper door weatherstripping and the weatherstripping below the vent window on the doorjam. Then when the weatherstripping id off, the vent window should slide right out. But all of this was for my 70 Duster with the rear vent windows. If this is not what you are working on, then, nevermind.