Thanks for the advice. I bought a "dismantler" mirror for $20, (MB part), it was perfect. In retrospect, I should have just swapped the mirror and left the mount alone. It does come off if you pull down HARD. It is difficult to reinstall with the mirror in place, so I removed the mirror and used a hammer with the face taped to reseat the mount as I couldn't do it by hand. I then reinstalled the mirror. Sucessful Mission. Thanks for the advice, your forum is great.