master cylinder to prop valve brake lines

[Rochlow]

So I've searched the web for a few weeks to find some brake lines for my truck. The proportioning valve in down on the frame just under the radiator. I've tried to find the lines with no luck.

Just seeing if anyone here knows were to get the line from the M/C to the proportioning valve in this application.

[sixtyeightchevykid]

i belive that starting in 73 they put the prop. valve down there so i would just go to an auto parts store and tell them you need that line...