ive seen kits for manuel and power brakes from 47-54 for sale on e-bay i think.if not try google search, include 47-52 chev or gmc,master cylunder.the new ones have 2 pots instead of 1.that sort of thing has saved my buns before!!!!!!!!!!!!!!!! .one power unit even had bracket to mount up the wider power unit.good luck with your project and i hope this info helped
