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Old 08-05-2020, 10:30 PM   #6
tchevs
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Join Date: Feb 2017
Location: Castroville California
Posts: 516
Re: Manual to power brakes on 1961 Apache

Quote:
Originally Posted by whateverpratt View Post
That's what I was trying to say was that the original master isn't going to have the volume needed for your calipers. I was able to install an '85 master on my '63 without any modifications or adapters, so I sufficient flow to my calipers
Ok misunderstanding because I didn’t explain well. The booster/ master is 78 corvette for disc/disc. The piston bore is 1-1/8” I believe.
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