I bought the Ford Aerostar window motors a couple of years ago and decided to install them this weekend. Unfortunately I didn't check them before storing them to see if they were 3 or 4 bolts. So rather then try to find the 4 bolt motor and wasting the $90 I paid for these things I thought I'd come up with a work around. I used the template in http://www.panteraplace.com/page164.htm and then made a backing plate to create an anchor point for bolt #2. I realized I could place the #2 bolt wherever I liked as long as it didn't interfere with the ratchet plate, the teeth on the ratchet plate or that little indented nibble that's on the underside of the ratchet plate and the body of the assembly. I tapped a hole, inserted the bolt with a collar so the plate didn't flex when the motor was being used, put some blue Loctite on it and tested about 20 times. It seemed to work well.
