Kelsey Hayes disc brakes

dallas ward said

I hav the proportioning valve from a power assist kelsey Hayes disc set up
Would I need a proportioning valve from a manual kelsey Hayes disc set up

Click to expand...

Of course not (there is no different PN). Didn't I tell you that the rest of the brake system doesn't care whether the MC is manual or power-boosted? All it does is make hydraulic pressure. The rest of the system doesn't know (or care) where that pressure came from.

However, good that you asked since there are subtleties to know. For example, a disk brake MC needs a larger reservoir for the front hydraulics (so it doesn't run low on fluid over time).