Do Proportioning Valves Wear Out?

pacuda59 said
Thanks Dodge 33!

I'm looking at the valve that came out of the 75 Dart and it's identical to the valves in the pictures...albeit dirtier. The line ports are the same, mounting bracket, etc.. I don't see any difference, unless the internals are different.

I would say.......... it is possible that the internal valving, could be different,
but I'm not one to say, because I don't know. Like I said before, a Factory Service Manual could be your best friend. Good luck!