Help! Fittings for Wilwood Proportioning Valve

[C10_ustacould]

I'm trying to help a friend install a Wilwood master cylinder and proportioning valve in his '67. The truck has front discs from a '71 with the 5 lug swapped drums in the rear. We are attempting to attach the original 1/4" rear line to the rear port on the proportioning valve. I'm hoping someone has already done this and can help locating an adapter fitting. What I need is a 3/8"-18 male inverted flare to 7/16" female inverted flare. Any help would be greatly appreciated.






This fitting supplied with the M/C has the correct female side but the wrong male side, not inverted flare.




Side view of the fitting with the wrong male side.

[RodnRudy]

You should be able to find that adapter at Auto Zone, O'reillys or NAPA. It will be brass.

[C10_ustacould]

I found it, Dorman 785-434 in case anyone else needs it. The trick was, the existing line has a larger tube nut to fit the stock proportioning valve, 9/16-18. I couldn't find a fitting with that configuration. Then I realized I needed to make a new line to mate with the existing line due to the positioning of the m/c which will allow me to use 7/16-24 IFF to 3/8-24 IFM fitting. I'll post pics when it's done.