This was my first mini-project on my new/old 85 300TD. Very satisfying! I had to spray some
kroil on the bolts to get them out. That stuff is amazing.
I noticed a few people mentioned marking the original position of the housing with permanent marker. I didn't find this necessary; instead I just reattached it loosely and opened and closed the door a bunch, tapping the unit up and down until the connection felt direct. It seems like this is a better route than drawing on your vehicle.