Thanks Jim & Matt. It was making noise, chattering in mid stroke, but silent when fully engaged or disengaged. But the current situation is it is engaged and full pedal movement, lock to lock, will not disengage it. Dang near took out a fence, before I got it shut off. So the final word is, throwout bearing or rebuild clutch or both????? I will certianly bow to and appreciate your advise. There is not teacher like experience and it's a real waste to re-invent the wheel every time. Thanks again, Buck