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I doing a front disc conversion and was planning on using a master brake cylinder from 68-70 big block mustang. Wasn't planning to use a power booster but part houses are asking me....power brake or manual when I ask about the new cylinder. What is the difference between manual master cyl and master cyl for use with a booster...I suppect either a different bolt pattern or built in proportioning value for rear wheel drum barkes...whats up here ! Thanks
I didn't know either, so I googled it. Here's what I got:
What is the difference between a power brake master and a manual brake master cylinder?
As a general rule, a power brake master cylinder will have a larger bore diameter than a manual brake master. A manual master will also usually have a deep piston hole to accept the manual brake push rod while a power brake master will normally have a shallow hole.
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