| [GMCnet] Brake prop valve [message #277019] |
Wed, 29 April 2015 19:37  |
glwgmc
Messages: 1014
Registered: June 2004
Karma:
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Our 78 Royale has had a one ton front and reaction arm disks since those were first available. I always thought the stock mc resulted in very low brake pedal. It stopped really well,but the low pedal always bothered me.
Today I pulled the pro portioning valve (aftermarket brass) and found it was the pv2 meant for stock rear drum brakes. I replaced it with the correct pv4 for disk brakes and that made all the difference. Pedal is higher and hard just like it should be. I still need to watch The fluid as the pads wear, but the difference is night and day
Jerry
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Jerry & Sharon Work
78 Royale
Kerby, OR
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