If you can't make your own, try these guys:
www.finelinesinc.com
www.inlinetube.com
I got some lines from Fine lines and they fit perfect. I don't know if they have lines for your truck.
Transmissions of this era usually use 90 weight gear oil. The best source of info is a shop manual.
crank8160 (8/1/2012)
Just found rusted out brake line from the master to the 3way piece
Has anyone made their own brakelines on a 57 f100 or similiar?
Or whats a better option ?