Bypass rear proportional

[ab008]

I want to bypass my rear proportional valve. What adapter do I need to go from the hardline from the front proportional to the rear brake hose. From. What I have gathered, it is something like a 9/16th male flange on the hardline and I need the adapt that to a 7/16th. I'm not sure of the pitch on either. Any help would be much appreciated

 

[nvrenuf]

The hard line on my old 91 crew cab screwed right in to an extended / braided brake line.