I highly recommend Steve83's documentation. It's the best I've seen. My tailgate window would not come down and without his documented photos I might still be trying to figure it out. In my case the motor would run but the window wouldn't move. The problem was a stripped window motor gear. Since the gear was stripped, I was able to push the window down by hand. I got the gear (new) from BroncoGraveYard.com. I had to remove the motor to replace the gear. Funny thing, when I re-installed the motor it would not run! After much analysis, and with the help of Steve83's documentation, I found that the tailgate latch safety switch (which prevents the motor from running unless the tailgate is closed) was not making good contact! Thanks again to Steve83.