1965 Valiant low brake pressure

Where's the facepalm smiley? This is the kinda crap I'm talkin about. You need to pay attention to what was THERE to start with. Did you have the wheel cylinder pins to begin with or not? If you did, then now you have the WRONG wheel cylinders and the WRONG shoes. Did you measure the diameter of the old wheel cylinder and compare to the new? Since Chrysler had several different brake packages, they also used different diameter wheel cylinders. All this is why I said it's imperative to know what you have there now, instead of just blindly throwin parts at it. This in and of itself is why I always recommend rebuilding what is there. Because now you have yourself in deep as far as trying to diagnose it. Do you even know what it is supposed to have on it?