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Old Oct 19, 2021 | 07:40 PM
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Master cylinder question
How can I visually tell the difference in a manual brakes master cylinder and a power brakes master cylinder? The indentation where brake rod goes is shallow but the piston opening( where snap ring is)size is 1in.
 
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Old Oct 19, 2021 | 08:27 PM
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Manual brake M/C has a 1" bore size and front disc M/C has a 1.25" bore size.
 
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Old Oct 19, 2021 | 08:39 PM
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Originally Posted by 1browski
Manual brake M/C has a 1" bore size and front disc M/C has a 1.25" bore size.

Is the bore size is visible without disassembling the master cylinder?
I compared the original master cylinder to the one off donor and openings, where the snap ring goes, are the same size.
 
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Old Oct 19, 2021 | 11:32 PM
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Yes. Where the snap ring is located, that is the bore size. I have a new M/C sitting on the work bench and just looked at it to double check. Mine is for a manual brakes 1972 4x4.
 
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