Brake and spring conversion help needed

[tanusfarms]

I'm fianlly getting into being able to get the parts I need to get the brakes hooked up. I found a les schwaub that will sell me just the parts on my account so I can finish it up but I have to find the parts from newer rigs that will work. So what i need help finding out is what brake lines will work and what front springs will work. I remember average f250 stateing something to the affect that a late model super duty springs will work(would that be f250 or f350?), and mid to late 80's brake lines. Has anyone tried using these, if so how did it turn out. also anyone familiar with what master cylinder I could use. The shop says their parts only go back to roughly 1981. again thanks for the help.

[fordman]

coil springs or leaf springs?

[tanusfarms]

leaf, its a 75 frame with a 76 front dana 44

[fordman]

i would guess the leafs would have to be the same width as the perches on the frame. so you would want 73-77 leafs maybe more years. but not older.