Brake proportioning valve question

[crewsr]

Thanks for the input. Manual gearbox. The new prop valve and rear hose has helped the stopping and brake pedal feel significantly. However, I am having issues with the 'plug' not sealing in the prop valve. The two different plugs I've gotten (1 from Napa now, one from Advance O'Autozone) have inverted flares that look too large in diameter to fully seat on the mating flare 'cone' inside the prop valve. It's like it needs a little crush washer or something... I'm irritated. I've tried snipping the flare off a piece of scrap line and inserting it into the cavity of the plug (in other words, using the line flare as a crush washer), but it's simply too thick and plug only engages like 2 threads (not enough) before bottoming out.

I don't really have loads of time to goof around with it, so I may wind up simply redoing the front lines where they 'T' down at the frame rail, and use both ports on the prop valve (i.e. keep both left & right lines separate all the way to the prop valve).