Since my rear disc swap, the prop valve has seeped. I've tightened the flare nuts to near failure, pulled them apart, fiddled and re-tightened to near failure. I've re-sealed the prop valve and variously filed away at the sealing flares. I have succeeded only in worsening the seepage into outright leakage. I need to re-do the whole mess, replacing the sealing flares and the prop valve. I'm not super excited about installing another used prop valve, so that leaves me searching the aftermarket for a universal/adjustable valve. My only problem is that I don't know what to get. I haven't seen anything that has two inlets and four outlets and am not sure what line size they have. Does anyone have any experience with this who can help me out? What aftermarket prop valve would work with our cars?