Adding a adjustable valve behind a proportioning valve is a waste of money and a hazard, greatly reducing the effectiveness of your rear braking. The wire from the prop valve is a ground for the brake light on the dash letting you know the valve is not centered, hence a problem if so equipped. The valve you speak of is by No means a proportioning valve, it is a pressure adjuster that is a crude replacement for one that the hot rod guys use. I use a prop valve on my conversions eliminating driving up and down a slightly gravel covered road slamming on the brakes over and over to get it adjusted as best as you can. Proportioning valves rarely go bad so I get mine from wrecking yards, if your doing a B body disk conversion get a prop valve from a B body with front disks. A body's, C body's same - same! If you want new, get one for what ever configuration your setting up.
Bottom line, if your building a factory car, ma MoPar paid very expensive engineers to design parts to make our cars stop. Why fight their expertise, all your doing is updating to newer technology. If your fabricating a car from scratch, Hot Rod, Rat Rod etc, and have no known variables the less expensive, and easy way out is an adjustable valve.
Herb
1954 DeSoto Firedome Estate Wagon 276 HEMI
1956 Plymouth Belvedere 361 4-Sale
1959 Dodge Coronet 326 Poly
1961 Plymouth Belvedere Custom Suburban Wagon 318 Poly
1961 Dodge Dart Pioneer Wagon 318 Poly
1963 Plymouth Fury 2D/HT 7.0L Gen III HEMI
1963 Plymouth Sport Fury Convertible 361
1970 Chrysler 300 Hurst 440
1979 Dodge Aspen Sport Wagon 360
1999 Durango SLT 5.9L
2008 SRT-8 Magnum 6.1L
St. Louis, MO.
&
-------Original Message-------
Date: 10/30/2012 9:28:50 AM
Subject: Re: scarebird conversion
yes, the adjustable porportioning valves are about $50.00 and can be put in thr rear line only so you can hide them too. I have used them on many cars and are great. The only draw back could be is if you have a wire going from the original port valve, and not real sure what it did, i think for an idiot lite.Russell
From: Joseph Lemire <jlemire426@xxxxxxxxx>
To: 1962to1965mopars <1962to1965mopars@xxxxxxxxxxxxxxxx>
Sent: Tue, Oct 30, 2012 4:31 am
Subject: Re: scarebird conversion
adjustable ones are cheap and easy to install
On Mon, Oct 29, 2012 at 9:39 PM, warren
<vulcan@xxxxxxxxxxxxx> wrote:
I've wondered about a proportioning valve for the rear brakes. One would be needed, correct? Warren
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http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
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http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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