80 and older should be the same. flare fittings. just go to the parts store and buy the hydroboost pressure hoses from a 77 c30 dually.
for the return side you will just need some bulk hose and a "t" and some hose clamps. "t" the return from the booster and the box together near the box, and run it back to the pump.
you will also need the master cylinder for a hydroboost truck