Proportioning valve plumbing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

renegade6 · 04-05-2010, 11:28 AM

I have noticed that a lot of times the plumbing between the master cylinder and prop valve is often reversed (see picture).

Is there any functional reason for this?

dwcsr · 04-06-2010, 01:41 AM

Depends on the master. At some point GM switched from the front resevior going to the front brakes. Later models it goes to the rear.

04-05-2010, 11:28 AM	#1
renegade6 Registered User Join Date: Nov 2008 Location: Texarkana, TX Posts: 443	Proportioning valve plumbing I have noticed that a lot of times the plumbing between the master cylinder and prop valve is often reversed (see picture). Is there any functional reason for this? Attached Images __________________ Brandon 63 Biscayne https://www.pro-touring.com/threads/90718-63-Biscayne 57 Chevy Truck (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=321380 72 K20 Long bed stepside (wife's) 72 K20 Long bed 396 (flip or keep...?) The latest build: http://67-72chevytrucks.com/vboard/s...76#post8438476

04-06-2010, 01:41 AM	#2
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: Proportioning valve plumbing Depends on the master. At some point GM switched from the front resevior going to the front brakes. Later models it goes to the rear.



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