Brake Proportioning Valve

[au03z71]

So, the original proportioning valve on my '72 is shot. The front brakes work fine, but the rear brakes are getting no fluid pressure. Turns out my proportioning valve is shot. I took it apart, cleaned everything up, put it back together, and re-installed it and no dice... Anyway, is there a cheaper alternative to buying a direct replacement? Summit has them but I'm not sure how I would plumb it. Anyone ever replaced one of these?

Thanks

[skeeterbug]

i just swithced my manual disc/drum over to power disc/disc new booster, pro valve, ss lines, and calipers the whole shooting match. i am still not done w/ all the gremlins yet but with all the cool guys and gals on the board im sure you will get plenty of help. to answer your ? there pretty easy to plum just as long as you MAKE SURE you get the correct lines going from the master to the pro. valve, it took me three sets to get the right ones and one set is ss and i cant use them @#$%^& things. good luck