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

fast14 · 12-08-2003, 05:17 AM

Can somebody tell me how a brake proportioning valve is supposed to be hooked up?? I swithed my front end to discs but i don't have the proportioning valve on it yet. I have the valve but I don't know what goes where. The brakes work better but still not that good. Thanks

PR454SS · 12-08-2003, 05:59 AM

There is a L bracket on mine that attaches to the master cylinder mounting bolts.

fast14 · 12-08-2003, 07:19 AM

I mean which is front rear?? Right /left??? Sorry about that.

PR454SS · 12-08-2003, 07:36 AM

Me too! I'm a lil slow this morning,
On the valve is the bleeder screw, this is facing forward towards the front of the truck, the first port on the top is for the front brake line from the master cylinder, the second port is for the rear from the master, the large fitting/port at the rear is for the brake line to the rear brakes, and the other is the front brake line. Sorry for the long post hope it helps

fast14 · 12-08-2003, 06:44 PM

Hey thanks a lot, that does help me out.

12-08-2003, 05:17 AM	#1
fast14 Registered User Join Date: Nov 2003 Posts: 117	Brake proportioning valve question Can somebody tell me how a brake proportioning valve is supposed to be hooked up?? I swithed my front end to discs but i don't have the proportioning valve on it yet. I have the valve but I don't know what goes where. The brakes work better but still not that good. Thanks __________________ Just a little crazy 1970 chevy full size half ton, soon to be one ton running gear, 350 turbo, 205 case, 355c.i.

12-08-2003, 05:59 AM	#2
PR454SS Registered User Join Date: Aug 2003 Location: Louisville, TN Posts: 338	There is a L bracket on mine that attaches to the master cylinder mounting bolts. __________________ PR Too many projects, not enough time! 72SWB 350/350TH, 3500stall,525 lift cam 3:73 posi. Sold! 69LWB Flatbed 350/Super T-10, ported/polished 481 heads, 480 lift cam. 78SWB 468/400TH, ported/polished Alum. heads, 3:42 posi, 3000 stall on 17x8 and 18x9.5's 77 Jeep CJ-5 304V8 fiberglass body on 36" Ground Hawgs

12-08-2003, 07:19 AM	#3
fast14 Registered User Join Date: Nov 2003 Posts: 117	I mean which is front rear?? Right /left??? Sorry about that. __________________ Just a little crazy 1970 chevy full size half ton, soon to be one ton running gear, 350 turbo, 205 case, 355c.i.

12-08-2003, 07:36 AM	#4
PR454SS Registered User Join Date: Aug 2003 Location: Louisville, TN Posts: 338	Me too! I'm a lil slow this morning, On the valve is the bleeder screw, this is facing forward towards the front of the truck, the first port on the top is for the front brake line from the master cylinder, the second port is for the rear from the master, the large fitting/port at the rear is for the brake line to the rear brakes, and the other is the front brake line. Sorry for the long post hope it helps __________________ PR Too many projects, not enough time! 72SWB 350/350TH, 3500stall,525 lift cam 3:73 posi. Sold! 69LWB Flatbed 350/Super T-10, ported/polished 481 heads, 480 lift cam. 78SWB 468/400TH, ported/polished Alum. heads, 3:42 posi, 3000 stall on 17x8 and 18x9.5's 77 Jeep CJ-5 304V8 fiberglass body on 36" Ground Hawgs

12-08-2003, 06:44 PM	#5
fast14 Registered User Join Date: Nov 2003 Posts: 117	Hey thanks a lot, that does help me out. __________________ Just a little crazy 1970 chevy full size half ton, soon to be one ton running gear, 350 turbo, 205 case, 355c.i.



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