I have a 31 four door slant window (windshield opens up) Murray sedan. This is what the Model A fordor body style identification illustrations on pg 2 in Macs Autoparts book shows it to be. The rear passenger side (rs) window got where it would not roll up, you could get the window up if you pull it up, seems like it is skipping or the gear teeth or worn. I took it out window regulator (3 screws hold it on). Turn the regulator normal and it works. I put it in a vise and put a little downward pressure on it like it was having to lift a window and it will start skipping when it gets about half way up so I assume the window regulator gear is worn out. There are no rivets holding the gear in looks like steel (3) brackets that are bent over holding the window regulator gear in. Looks like it is the original part. No numbers or writing stamped on it. I can not find any 3 hole regulators for a 4 door sedan. The three hole I find or for 28-31 are for coupes, tudors, trucks. The only window regulators I find for 28-31 fordors are 4 screw hole type. I looked at the door and it is only made for 3 screw hole type. I am afraid if I bend the ends up one are all will break off. So where can I find a 3 hole regulator for a 4dr sedan. Sorry I type so much just trying to explain it. Thanks.