I was installing my competition clutch twin disc and i noticed the center is smaller making throwout bearing center to large for the clutch. I read about people cutting the center of the bearing to fit the clutchso i cut the center down till the metal bearing could make contact with the clutch PP. doesnt look like there is much travel in the clutch system to make these clutches release. Anyone have to do any modifications to the clutch system to work with this clutch, ive heard of pedal stops on some clutches but friends i know that have used them have not said anything about special stuff to do to the system.