If you have a full solid pedal I wouldn't have enough travel. You lose a little peddle and have to pump them your in trouble. I am telling this from experience from many years of working on and towing mopars. What I am telling you is a fact I don't care what you believe or what aftermarket masters have. Could be they were designed for later model cars with Power brakes. Jims brakes gets over $60 for that little retainer lock. wonder why. Not because you don't need it
