'57 (58) Imp speedo removal

[Philippe Courant <accf-club@xxxxxxxxxxxxxxxx>]

Hi,
I must now remove my non-working speedo (since 2 years) and install 
another tested. Does someone have remove a 57/58 Imperial speedo WITHOUT 
removing the dash ? I know how remove the speedo itself (i've two spare 
clusters), i know it's a pain to access to the upper nuts (and i can't 
imagine how to re-install them...) but if someone has already removed 
one let me know what parts i must remove before. Seems that removing the 
parking brake assy. is mandatory but nothing else ?
Ther's some infos about "57 speedo removal" on Chrysler bulletin 1000-CH 
but i don't know if ther's something about Imperial.
The labor time schedule says 1.6 h  for Imperial (0.5 for Chrysler..)

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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