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Old 04-08-2020, 11:04 PM   #11
Steeveedee
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Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,104
Re: Rear drums locking easy after Power Disc conversion

You shouldn't have to use the valve from Summit in conjunction with the proportioning valve you have. Verify which part of the master cylinder pressurizes which part of the brakes. Some use the rear piston part for front brakes, some for the rear brakes.
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