I'm installing a 9" rear end from a 58 ranchero in to my 56 Victoria. The wheel cylinders in the 9" are 15/16" bore, the 56 has 7/8" bore cylinders. Which cylinders should I be using for proper braking to work  with the master cylinder and original front brakes? I do have a dual MC from a 67 Mustang which has worked well for years.  Dave

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