73 Plymouth Satellite 8 3/4 rear proportioning valve, changing rear drum brakes to disc brakes

[R. Everett]

73 Plymouth satellite, I am converting the rear brakes from drum to disc brakes, what proportioning valve do I use? 8 3/4 rear end, currently has power front disk brakes and 11inch rear drum brakes. Thanks in advance for your help!

 

[JoePole]

I added 97 Jeep GC rear discs to my 72 with 8.25 rear. Already had front disc from factory.
I added a summit adjustable prop valve to the rears. Adjusted in wet parking lot. All good.

 

[70chall440]

This is what you need

Proportioning and Combination Valve, AC Delco 172-1353 and 172-1361 Type

 

[R. Everett]

I ended up using a Wilwood combination valve ( proportioning valve) and it’s been working fine. Had to make new lines off from my old master cylinder but used all the other lines, just bent them up. I also had to buy longer lug studs due to the rotor taking up all the thread

 

[446acuda]

Looks good! It sure looks like the lines from the master cylinder to the proportioning valve are copper tubing. If so, this won't hold the pressure and these need to be steel or stainless steel.

 

[JoePole]

.....or Nickel/copper. Bends and flares easy.

 

[70chall440]

Also is corrosion resistant.