[Tigers] Iron brake masters

[Rollright at aol.com]

Hello all,
 
There is a guy on E-Bay selling brake masters with iron bodies.
 
Memory says that there is a spring that goes south in the originals. Does  
anyone know if the internals of the iron version would work in the original  
aluminum body?
 
Best regards,
 
 
Jim  Armstrong
Mk 1A 382002083
LRXFE
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