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Old 11-28-2012, 04:19 PM   #1
GMC Guy
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Limiting pressure to rear discs

I'm going to be doing a rear disc swap pretty soon and would like to know what is the best way of limiting line pressure to the rear brakes. if anyone has a part number or knows a cheap way to make the whole system function correctly, that would be much appreciated!
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Old 11-28-2012, 04:24 PM   #2
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Re: Limiting pressure to rear discs

A brake proportioning valve is likely all you need
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Old 11-28-2012, 05:26 PM   #3
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Re: Limiting pressure to rear discs

Aftermarket adjustable prop valves are available through places like Summit, Jegs or other brake specific catalogs.

You can fine tune the brake feel you like with the twist of a knob.

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Old 11-28-2012, 05:38 PM   #4
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Re: Limiting pressure to rear discs

http://www.summitracing.com/parts/rsd-pv72/overview/
this one?

or this one?
http://www.summitracing.com/parts/sum-g3905/overview/
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Old 11-28-2012, 10:07 PM   #5
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Re: Limiting pressure to rear discs

Maybe (non adjustable, depends on the pressure slope they've built into the valve)

and

Yes (adjustable)

K
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Old 11-28-2012, 11:10 PM   #6
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Re: Limiting pressure to rear discs

where is the optimal place to install it? near the master cylinder or just wherever is convenient?
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Old 11-28-2012, 11:42 PM   #7
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Re: Limiting pressure to rear discs

Any where. I would go by the master cyl so it's out of the way
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