I'm at a dead end. The brake proportioning valve located on the fender well is leaking. Ford no longer stocks it due to low demand ! The local parts stores are clueless. I can not find it online. The only rebuild kits I see are for 1970s model mustangs. The part # is 2B091 on the Ford parts web page. Does anyone know what I can do ? Thanks in advance.

 

Are you sure the valve is leaking, and not one of the lines?

 

The lines are dry. The fluid is coming from the bottom. Looks to be a threaded plug I'm guessing is the plunger with the O rings inside.