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post #1 of (permalink) Old 10-20-2007, 08:31 PM Thread Starter
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Where can I buy a stock brake proportioning valve?

After 2 hours of searching, I know everything I ever wanted to know about brake proportioning valves, except where to buy one. Mine's leaking too much to keep pouring in fluid, but hey, I'd like the jeep to continue to stop when I push the pedal.

I'm running a 77 CJ-7 with stock disks in the front and drums in the back. 4WD Hardware wants $180 for this part. (and $100 less for the 87-93 YJ model?) Could the stock proportioning valve match some other more common vehicle? Or where can I find one at a reasonable price?

Thanks, Mark

FT-847 with ATAS-100 & 77 CJ-7 ground plane.
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post #2 of (permalink) Old 10-21-2007, 06:31 AM
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Does the dealer still have them? Try Reuther in St. Louis.

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post #3 of (permalink) Old 10-21-2007, 09:03 AM
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Inline tube might be your friend.
Proportioning Valves
Product Info

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post #4 of (permalink) Old 10-21-2007, 12:23 PM Thread Starter
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Thanks for the info guys. Inline Tube has an excellent looking site. I'll try the dealer first, in the unlikely event they're cheaper and/or have it in stock.

Thanks again, Mark.

FT-847 with ATAS-100 & 77 CJ-7 ground plane.
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post #5 of (permalink) Old 10-27-2007, 07:27 PM
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rockauto.com

they have everything. and will be shipped to you quick. my buddy just got a ECM for his 95 yj and we are in canada and it only took 4 days. the local dealer couldnt even get it that quick
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post #6 of (permalink) Old 10-28-2007, 06:27 PM
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JEGS has an adjustable proportioning valve for around $110 that might work for you. I was in their store yesterday and made mental note of the valve for future needs.

-- Mike
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post #7 of (permalink) Old 10-29-2007, 12:01 AM Thread Starter
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I like JEGS site, thanks for remembering. I considered the Racing car style, till I read a really good thread here on the board, before posting my question. The proportioning valve used in production vehicles is actually about 3 valves in one. It'll light the brake light if either the front or rear loose significant pressure; and it isoletes the two, so a broken brake line in the front won't leave you without brakes in the rear.

FT-847 with ATAS-100 & 77 CJ-7 ground plane.
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post #8 of (permalink) Old 10-29-2007, 05:04 PM
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Those are definitely good things to keep in mind when looking at brake systems. I do know that the one I saw in Jegs has a brake light switch integrated. I do not know if the switch turns on at low pressure or how it isolates the front/back brakes if one system fails.

This is the one that I saw.
JEGS 63025 - JEGS Adjustable Proportioning Valve and Distribution Block - JEGS



-- Mike

Last edited by sourpwr; 10-29-2007 at 05:07 PM.
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