duel chamber master cylinder for 66

[LOYALZ@xxxxxxxxxxx]

Does anyone know if a duel chamber master 
cylinder from a '71 Imperial will fit on a '66? I need 
to switch my single chamber master cylinder with a 
duel chamber, but I'm not sure which one is 
compatible. I saw on the '66 repair page where 
someone has switched, but they didn't say what 
the 
duel chamber MC came from.

thanks for the help,

Loyal Stern
66 Crown Coupe