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Old 06-08-2007, 12:56 PM   #1
one9six9
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Join Date: May 2007
Location: Milton, FL
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Disc Brake Proportional Valve

Will the proportional valve from a non-power brake system work with a power brake system?
Can I just install a booster behind the non-power master cylinder?
I am installing a disc on my 69, and I am also going with power brakes. I have a master cylinder and prop. valve from a non-power 71.
What do I need to complete this task?

Thanks,
Keith
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Old 06-08-2007, 01:25 PM   #2
68speedalert
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Location: Washington, MO
Posts: 390
Re: Disc Brake Proportional Valve

In theory, it shouldn't matter with the prop valve if it's power or not. The ports from the M/C have to installed correctly; smaller sized resevoir goes to the rears, larger goes to the front brakes. They've got to go to the right port on the prop valve.

I wouldn't have thought that the M/C would not be the same, power vs. non power, but NAPA only shows one M/C regardless of the option.
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'68 50th Anniversery LWB Custom Fleetside, '77 305 v-8, turbo 350, factory speed alert (still works), '71 drivetrain w/front discs. Some call it ugly yellow, others call it Ochre
'83 Jeep CJ-7, <80,000 miles, original owner
'04 Chevy Suburban, 4x4, 2500, 6.0 ltr, Predator Diablo programmer
'95 GMC K1500 Extended cab
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