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-   -   Brake proportion valves (https://67-72chevytrucks.com/vboard/showthread.php?t=295247)

orbot 06-10-2008 10:22 PM

Brake proportion valves
 
Who has used theese, and wich, i have 1/4" lines but cant decide on wich one.

PhilaTruck 06-12-2008 09:18 PM

Re: Brake proportion valves
 
Can you re-phrase your question?

This is the answer to what I think you're asking. You'll need to know what kind of rear-brakes you have. There were 3 different size drums for all models 80-87. (You don't specify which year yours is.) If you give your parts supplier the RPO code from the inner fender or the glove box, they should be able to get you the right proportioning or combination valve.

This info came pretty much out of a Chiltons, which I recommend. Or a Haynes or whatever.

Lots of good info in idiot books.

Good luck-

-Todd

LONGHAIR 06-13-2008 11:57 AM

Re: Brake proportion valves
 
Are you refering to an "adjustable" valve? These are an "add-on" thing, they do not replace the original.

COMP 06-15-2008 11:14 PM

Re: Brake proportion valves
 
Quote:

Originally Posted by LONGHAIR (Post 2763951)
Are you refering to an "adjustable" valve? These are an "add-on" thing, they do not replace the original.

some do,, some also have a low pressure check valve

LONGHAIR 06-16-2008 06:56 PM

Re: Brake proportion valves
 
Link?

COMP 06-16-2008 07:42 PM

Re: Brake proportion valves
 
Quote:

Originally Posted by LONGHAIR (Post 2768012)
Link?

summit,,jegs,,speedway automotive etc ,,the street rod supplyers to

LONGHAIR 06-17-2008 07:27 PM

Re: Brake proportion valves
 
I looked it up in Jeg's catalog, yes the paper one....

They do have one like that. I had never seen it before, wasn't really looking for it before either?


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