Proportioning valve for 87 iroc with rear disc breaks
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Joined: Jun 2004
Posts: 313
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From: Buffalo, NY
Car: 1987 Iroc-z
Engine: 355/Edelbrkhds/lpe219cam/MiniRam/
Transmission: 700R4/3.27 9bolt
Proportioning valve for 87 iroc with rear disc breaks
I heard that the 14089497 is the correct part number. It’s officially discontinued. Does anyone know wher I can find one?
Joined: Mar 2001
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: Proportioning valve for 87 iroc with rear disc breaks
FlynBye.com might have one if you're lucky. Otherwise it's the junk yard. And no rebuild kits available that I know of.
Thread Starter
Member
Joined: Jun 2004
Posts: 313
Likes: 1
From: Buffalo, NY
Car: 1987 Iroc-z
Engine: 355/Edelbrkhds/lpe219cam/MiniRam/
Transmission: 700R4/3.27 9bolt
Re: Proportioning valve for 87 iroc with rear disc breaks
i put the stock spring back in the front and now it seems to have stopped leaking. Anyone seen this issue before? I used the 19lb spring per the famous iTunes video on how to have third gen rear brakes work better.
Last edited by jackballs529; Aug 25, 2019 at 09:33 AM. Reason: Update
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