I did a quick search and found very little of any help. My question is: How difficult would it be to convert from power to manual windows on a 1991 240 coupe? I assume the glass is the same, as well as the hardware mounting positions inside the door. I wonder if it would be possible to modify the existing door panels or do the manual panels have different contours to accommodate the crank? If this isn't too hard, I might start checking around the junk yards, unless someone would like to trade up for parts to some extent. All of my window hardware works exceptionally well, without flaw.

John