I'm preparing to install a firewall mounted pedal assembly with a power booster and dual master cylinder in my 52. I got the booster and master cylinder out of a 99-02 Chevy Silverado
What type of brakes did the new truck have? and what type does your old one have? If they are both drum/drum should be fine, could even use the proportioning valve from the new truck. But if the new one had disc, and you have all drums, then some more investigation may be necessary. I'm not sure if that MC will work or not, but worth checking into. You for sure need a proportioning valve from a vehicle with similar brake system.
Grigg
