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Dual master cylinder with front disc brakes , metering block or proportioning valve
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58plymouth392
Posted 2019-06-08 9:47 PM (#583131)
Subject: Dual master cylinder with front disc brakes , metering block or proportioning valve


Member

Posts: 7

What dual master cylinder and metering block will work to replace the single master cylinder?
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Old Ray
Posted 2019-06-09 9:53 AM (#583143 - in reply to #583131)
Subject: RE: Dual master cylinder with front disc brakes , metering block or proportioning valve



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Location: Invermere B.C. Canada - Rocky Mountains
Are you using a new aftermarket master cylinder or a different (obviously) OEM master cylinder off a newer Mopar car ? If off a Mopar use the valve that would have come with that MC. I never found a need for the adjustable type. (pictures of a Dakota MC and valve in a my '56 are available)

Whoops to early and not enough coffee, you are going to have to do a search for which MC works best for your car, sorry.

Edited by Old Ray 2019-06-09 9:58 AM
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mikes2nd
Posted 2019-06-09 1:02 PM (#583155 - in reply to #583131)
Subject: Re: Dual master cylinder with front disc brakes , metering block or proportioning valve


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people claim the 1 1/8 isn't big enough to move the fluid, there is a nice mopar that is 1 1/4 that people claim is big enough.

search and you will find some good threads

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57chizler
Posted 2019-06-09 4:52 PM (#583164 - in reply to #583131)
Subject: RE: Dual master cylinder with front disc brakes , metering block or proportioning valve



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Location: NorCal
The size of the caliper piston will dictate which MC you need. My disc swap uses the 2.95" caliper and a 1 1/8" MC gave a low pedal, a 1 1/4" MC worked better.
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mstrug
Posted 2019-06-09 8:06 PM (#583174 - in reply to #583131)
Subject: Re: Dual master cylinder with front disc brakes , metering block or proportioning valve



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http://therammaninc.com/products/Mopar-Master-Cylinder-Guide-1967-1... I think 1-1/4'' is out of the question. Most people who use mopar masters with disc brakes use a 1-1/32'' master.
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58plymouth392
Posted 2019-06-12 11:10 AM (#583333 - in reply to #583131)
Subject: Re: Dual master cylinder with front disc brakes , metering block or proportioning valve


Member

Posts: 7

Thank you for the information, I believe it has Aspen disc,brakes.
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Powerflite
Posted 2019-06-12 3:57 PM (#583346 - in reply to #583131)
Subject: Re: Dual master cylinder with front disc brakes , metering block or proportioning valve



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Location: So. California
The other problem is the rear brakes. The stock rears are best suited for 1 1/8" too. Using a smaller bore master on my Coronet with stock rears makes for a consistently low pedal and is therefore more sensitive to the rear adjustment. So I end up adjusting it more often as it wears. Use a larger bore and the adjustment position isn't as critical.
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