NEED HELP!! 1973 Dually Brake Problems

[SCOTI]

Originally Posted by Crcrft78

I am at my absolute wits end with this F***ING truck and its brakes. Does ANYONE know for a fact if 74-75 brakes can be bolted up to the 73 without any problems. I'm ready to send this thing to the f***ing scrapper.

Any later model C30 (-91) will interchange. You'll need to try & keep things similar or issues will arise. Ex: Switching from a vacuum app to Hydra-boost requires a different pedal ratio (thus different pedal or different location of pin on the pedal). On my 89, I swapped from HB to a vacuum set-up & needed to adjust the pedal ratio.