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Discussion Starter · #1 ·
I purchased a dual master cylinder conversion for #383 from

http://www.cobraautomotive.com/new%20products.htm

Figured it would be better to make the conversion than to wish I had done it. Is my stock proportioning valve adjustable? Looks like there is a thin locking nut, and the large diameter threaded rod has flats on it, but in testing I could not get anything to budge. The don't see any reference to it's adjustment in the Ford service manual. I'd like to keep the original valve on the car.
 

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John - Yes, the factory-installed (made by Kelsey-Hayes) prop valve is adjustable. IIRC, when the adjusting bolt is turned all the way in - all hydraulic pressure is directed to the rear brakes. Probably want to verify that, though.
 

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Check the thread on proportion valve from earlier this morning. The last post has a web link that discusses the valve.
 

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Discussion Starter · #4 ·
Thanks, somehow I missed that post. Exactly what I needed....
 
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