Hy rviator, welcome, you could run the system without a booster, but that would make the pedal effort required to stop very heavy. There are kits out there to put boosted brakes in the stock location under the floor for the slightly newer trucks (1948 and newer), but I haven't seen such a kit for your year. Does you master cylinder mount to the side of the transmission and do your pedals mount to the bellhousing?
