I've the same problem on my '57: left & right mirror are identical but the adjustement is too small for right side (the back of the mirror rests against the bullet shaped mounting). Problem was solved in '59 with R & left mirrors and glass-only adjustement. The only solution is to put mirrors in an ahead position on fender than factory but it's ugly .. Or use a convex (or concave) glass ! -- Philippe COURANT (Pau, France)- Webmaster des sites ACCF et C-I-F Imperial 1957 Crown convertible Buick 1996 Roadmaster wagon - American Car Club de France (ACCF) : http://www.accf.com - Chrysler Imperial France (C-I-F) : http://www.ifrance.com/c-i-f - Cadillac " Standard of Excellence " : http://www.ifrance.com/accf-cad - SportsCars : http://www.ifrance.com/accf-sprtcar