I have a Muncie that has always had a low hum. replaced the motor on the truck, new clutch, pressure plate, flywheel, and throw out bearing. I don't remember if i replaced the pilot or not. When i engage the clutch slowly nothing happens and the hum is what its always been. If i slam the clutch, it starts a vibration, not terrible, but noticeable. putting the clutch back in and engaging slowly goes back to the hum. Exact same results in neutral and under load. The muncie should be at about 200k miles. In addition clutch pedal feels softer than before; it is a mechanical clutch. I was just wondering if anyone had any insight. thanks for the help in advance!