Woog,
My 1965 had the RVM screwed to the metal just above the glass. I doubt very much your "glass mounted" RVM was original (which you probably already knew).

In some of my other cars, I've struggled to get the RVM adhesive to work. You have to completely remove any trace of the old adhesive, then use a grit to roughen the surface and then apply the new adhesive and finally the mirror. Not to mention needing to hold the mirror (staying motionless) until it dries or your arm wants to fall off, whichever comes first.

Good luck and I hope your repair passes the speed bump test.

Last edited by cletis; 06/04/2017 3:18 PM. Reason: deleted part offer