Originally Posted by ChiliRedS

If it is the mirror de attached from the base on the door(where the allen screws are now exposed) there is a silver pressure clip with little fingers on it that has to be pressed onto the shaft part of the mirror thats goes into the base. There is a spring that goes in between that clip and the mirror that keeps it from vibrating but allows it to be folded in toward the window. You will need to remove the 2 allen screws(at least they where allen on mine) and pull the base off. You should see the parts laying inside the base. I used a deep dish socket and a hammer to lightly tap the clip back onto the shaft. It doesn't have to be real tight. If you put it on too far the mirror will be difficult to fold.