I am not to sure on the wheel cylinder sizes. I guess I can try to measure those. But I know the master cylinder is the 1" bore like the FSM states it should have. It is drum drum master cylinder, but I did not remove any residual valves. I looked through the brake section in the 70 charger FSM and was not able to locate anything regarding where to adjust the length of the booster push rod too.
The booster is a reproduction of the disc brake power booster.