4 wheel disc brakes, Proportioning valve? Residual valves?

Hey I’m looking for some advise, I have a 65 valiant and one of the first things I did was went to a 72-74 dart style disc brake up front with a matching master cylinder. I have recently changed the rear brakes to a summit GM style disc brake kit. I will be upgrading the front suspension and front disc brakes (wilwood) and was going to replace the brake lines while it is apart. Now one thing I haven’t touched or added is a proportioning valve or residual valves for the vehicle now having 4 wheels disc brakes. Can someone lead me in the right direction?

Use an adjustable valve . Plumb it in just behind (1-2') the factory tee .

With 4x disk you may not need a prop valve. I would just try it. If you look in the shop manual they show you how to pull the residual valve out. I did not do so on my 67, I simply ruptured the rubber with a nail

I have Duster/ Demon disk up front, Lincoln Versailles (Ford 9") disk brake rear in rear. Used original 67 master, ruptured both residual valves, and use no prop valve at all. Tires and types of brakes will make a difference.

The "by the book" way of removing them (originally for rebuild) was to use a sheet metal screw and claw hammer. Then of course re-install the brass seat which seals the tube connection.

I have Porsche calipers on the front and Jeep calipers on the back. I use a factory drum/drum distribution block, and a adjustable wilwood proportioning valve for the rear. Works pretty well.

Dustert73 said:

I have Porsche calipers on the front and Jeep calipers on the back. I use a factory drum/drum distribution block, and a adjustable wilwood proportioning valve for the rear. Works pretty well.

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is it close to the end of it's adjustment?

kursplat said:

is it close to the end of it's adjustment?

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Yeah