Brake proportioning valve - The 1947 - Present Chevrolet & GMC Truck Message Board Network

prodjay10 · 01-02-2021, 01:38 AM

Would a proportioning valve need to be replaced when going from manual to power brakes?
1971 c10 disc/drum

Any suggestion for a replacement?

**68 C10 Driver** · 01-02-2021, 01:47 AM

I wouldn't think so, it works on the principal of equal pressure (front and rear), it would be the same whether powered brakes or standard.

prodjay10 · 01-02-2021, 12:08 PM

Any idea where I can get a stock replacement?

**LockDoc** · 01-03-2021, 11:50 AM

Quote:

Originally Posted by prodjay10

Any idea where I can get a stock replacement?

Try looking it up as a Combination/Proportioning Valve. Almost any parts supplier should have them. The only difference is that most of the new ones are made out of brass.

https://www.classicparts.com/1957-74...ctinfo/71-248/

Or: https://www.napaonline.com/en/p/NMAM...rtioning+valve

LockDoc

**68 C10 Driver** · 01-04-2021, 08:21 AM

Quote:

Originally Posted by prodjay10

Any idea where I can get a stock replacement?

I got mine from Brothers, but LMC also has them.

01-02-2021, 01:38 AM	#1
prodjay10 Registered User Join Date: Jun 2016 Location: Phoenix AZ Posts: 429	Brake proportioning valve Would a proportioning valve need to be replaced when going from manual to power brakes? 1971 c10 disc/drum Any suggestion for a replacement?

01-02-2021, 01:47 AM	#2
68 C10 Driver Senior Member Join Date: Oct 2020 Location: Kathleen, GA Posts: 651	Re: Brake proportioning valve I wouldn't think so, it works on the principal of equal pressure (front and rear), it would be the same whether powered brakes or standard.

01-02-2021, 12:08 PM	#3
prodjay10 Registered User Join Date: Jun 2016 Location: Phoenix AZ Posts: 429	Re: Brake proportioning valve Any idea where I can get a stock replacement?

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