where to get brake proportioning valve - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SnS C10 · 08-26-2004, 09:21 PM

i am replacing the master cylinder on my 71 gmc 3/4. where can i get a brake proportioning valve. i think im gonna go with the one at gmcpauls but was just wondering where else because i cant seem to find them

**Tim Christian** · 08-27-2004, 02:00 AM

I have them in stock $80.00 + ship. Let me know if I can help you. Thanks Tim @ Christian's Classics

**GMCPaul** · 08-27-2004, 02:18 AM

Shaun we have them in stock when your ready to order you'll find them here on our web site
http://www.gmcpauls.com/Brakes&Steering.htm
We have both disc/disc or disc/drum style and they include new mounting bracket and 2 new master cylinder to prop valve lines.
GMCPaul

Blue4x4 · 08-27-2004, 08:42 AM

I bought mine at the chevy dealer $75.00. It's oem and didn't have to pay shipping. It took 3 days to bring it in.

Fred T · 08-27-2004, 10:01 AM

Quote:

Originally Posted by Blue4x4

I bought mine at the chevy dealer $75.00. It's oem and didn't have to pay shipping. It took 3 days to bring it in.

How long ago was that? Last summer I was told they were no longer available!

Longhorn Man · 08-27-2004, 10:31 AM

Not to take any buisness from our fine parts vendors, however there is an aftermarket route you might want to look into.
If you were to get an adjustable prop-valve, then you can fine tune it to where your rears lock up just before the fronts, and then when you are loaded down with crap in the back, or a heavy trailer, you can add more braking in the rear since the back wheels won't lock up prematurly.
The newer F*rds have something like this plumbed in, but it adjusts depending on the amount of weight in the bed. Pretty good Idea IMO. (Semi trucks have been doing it lke that for years)

SnS C10 · 08-27-2004, 12:35 PM

also i have another question. the red brake warning light is always on in my fuel gauge i think it is, and if i unhook the wire into the proportioning valve it turns off. what does the red warning light mean?

**GMCPaul** · 08-27-2004, 01:40 PM

The light would be on with wire connected because prop valve is sensing low brake pressure when its connected.
GMCPaul

Tx Firefighter · 08-27-2004, 01:54 PM

Quote:

Originally Posted by Fred T

How long ago was that? Last summer I was told they were no longer available!

They were still available in May, I know, I've seen myself buy one.

08-26-2004, 09:21 PM	#1
SnS C10 Registered User Join Date: Jul 2004 Location: Lomita, Ca Posts: 1,225	where to get brake proportioning valve i am replacing the master cylinder on my 71 gmc 3/4. where can i get a brake proportioning valve. i think im gonna go with the one at gmcpauls but was just wondering where else because i cant seem to find them

08-27-2004, 02:00 AM	#2
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,388	I have them in stock $80.00 + ship. Let me know if I can help you. Thanks Tim @ Christian's Classics Last edited by Tim Christian; 08-27-2004 at 05:00 AM.

08-27-2004, 02:18 AM	#3
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,721	Shaun we have them in stock when your ready to order you'll find them here on our web site http://www.gmcpauls.com/Brakes&Steering.htm We have both disc/disc or disc/drum style and they include new mounting bracket and 2 new master cylinder to prop valve lines. GMCPaul __________________ Secure Online Catalog for-GMCPauls Truck Parts Email- GMCPAULS@GMAIL.COM Last edited by GMCPaul; 08-27-2004 at 01:38 PM.

08-27-2004, 01:40 PM	#8
GMCPaul Senior Member Join Date: Mar 2000 Location: Rockville,In. USA Posts: 3,721	The light would be on with wire connected because prop valve is sensing low brake pressure when its connected. GMCPaul __________________ Secure Online Catalog for-GMCPauls Truck Parts Email- GMCPAULS@GMAIL.COM

08-27-2004, 08:42 AM	#4
Blue4x4 Senior Member Join Date: Mar 2003 Location: Sparks, NV Posts: 790	I bought mine at the chevy dealer $75.00. It's oem and didn't have to pay shipping. It took 3 days to bring it in.

08-27-2004, 10:31 AM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Not to take any buisness from our fine parts vendors, however there is an aftermarket route you might want to look into. If you were to get an adjustable prop-valve, then you can fine tune it to where your rears lock up just before the fronts, and then when you are loaded down with crap in the back, or a heavy trailer, you can add more braking in the rear since the back wheels won't lock up prematurly. The newer F*rds have something like this plumbed in, but it adjusts depending on the amount of weight in the bed. Pretty good Idea IMO. (Semi trucks have been doing it lke that for years)

08-27-2004, 12:35 PM	#7
SnS C10 Registered User Join Date: Jul 2004 Location: Lomita, Ca Posts: 1,225	also i have another question. the red brake warning light is always on in my fuel gauge i think it is, and if i unhook the wire into the proportioning valve it turns off. what does the red warning light mean?



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