Master cylinder for manual disc brakes?

The truck MC's have a larger bore (1.125") which means it will require more leg pressure. Some like this but I didn't and I thought I would. You should be able to find a parts store MC for the Dart with disc/drums. I switched to an aluminum one with a 1.03" bore. Still requires some leg but not like the truck MC. One with a 7/8" bore would work even easier - but as the bore size decreases, the pedal travel increases.