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#2: 10-10-2012, 12:54 AM
 
 technicalgarage
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Most sounds in my experience come from the throwout bearing to me.
If you're on the original clutch, there is a slight possibility that the bearing is eating its way into the snout of the transmission case. I suppose it's possible the pilot bearing has gone bad, but generally the TOB is the more common culprit of noise. If you search you will find numerous threads about the throwout bearing.