The 2 nuts that hold the balance channel to the door are removed. The regulator body is held in place with 4 large rivets. The center pins in the rivets are punched in, using a hammer and punch. The remaining body of the rivets are drilled out using a 1/4 inch drill. After all of the rivets are drilled out the regulator is pulled away from the studs on the glass and the short channel is pulled out its holes in the door. The drill bit (or hand reamer) is then inserted into the 4 holes, where the rivets were, to round out the holes.
