Good luck with that. Once I heard that if the diaphragm spring breaks and one of those little finger plates gets trapped in between the pressure plate and the clutch disc, the clutch disc can not come back to its normal position. Just an idea. I think that it is a good idea to replace the disk, the bearing and the pressure plate since you have to take everything apart. Please keep us informed!!! By the way, what was the mileage on your car when the problem started?