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1969 Brake Proportioning Valve

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Old May 16, 2022 | 06:18 PM
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Default 1969 Brake Proportioning Valve

or whatever it does. Does anyone have information on how to rebuild it and/or a part number for a rebuild kit?
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Old May 16, 2022 | 06:53 PM
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Does yours look like this?

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Old May 16, 2022 | 07:08 PM
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yes it does
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Old May 16, 2022 | 07:45 PM
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Just buy a new one! Really!
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Old May 16, 2022 | 08:09 PM
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They are very simple, easy to rebuild, but easy to replace also. All they do is light the warning light. What is wrong with the block?
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Old May 16, 2022 | 08:15 PM
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Check this out. Be sure they are the correct parts. Kind of a fun project.

https://www.musclecarresearch.com/gm-parts
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Old May 17, 2022 | 01:00 PM
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thanks for the website, it's just been sitting for 30 years.
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Old May 17, 2022 | 01:55 PM
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This might help you to know what you are dealing with.
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Old May 18, 2022 | 12:54 PM
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You might want to test the distribution block when you are removing it. During the removal process, take the rear reservoir line and the line to the rear brakes off first. Then go inside the car and press on the brakes, you should see a momentary brake warning light. It should go off as soon as pressure is off the block. If it stays on, the switch is stuck. It might not go on if the warning light doesn't work. That is easy to check. Just ground the wire hooked to the distribution block.
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Old May 21, 2022 | 06:57 AM
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This is why my cars sits in the garage. Little projects that I get tangled up in. I actually have a 63, but in the early 80s I went to Corvette Heaven in San Jose, Ca and took the suspension components including brakes off a 1969 rolling chassis so I don't have a warning light.

Now I'm thinking what if I just take the internals out and just use it as a distribution block. I'd have to leave the two fittings that mate to the brake lines in, but I should be able to take everything in between out.

any thoughts?
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Old May 21, 2022 | 06:59 AM
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oh maybe not because my front and rear systems wouldn't be independent any more. rebuild parts are in the mail.
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Old May 21, 2022 | 09:50 AM
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Originally Posted by Barnabe
This is why my cars sits in the garage. Little projects that I get tangled up in. I actually have a 63, but in the early 80s I went to Corvette Heaven in San Jose, Ca and took the suspension components including brakes off a 1969 rolling chassis so I don't have a warning light.

Now I'm thinking what if I just take the internals out and just use it as a distribution block. I'd have to leave the two fittings that mate to the brake lines in, but I should be able to take everything in between out.

any thoughts?
Really bad idea! But if you don't have a failure light, you can get 2 short lines made to bypass the block.

Last edited by kodpkd; May 21, 2022 at 10:42 AM.
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