I put the clutch in about 12k ago though. Never really driven it hard. Could it possibly be the input shaft bearing? And I;m not 100% that the pilot bearing was replaced... I would think it was but not certain. Today I was coasting and put it into different gears keeping the clutch in and I could hear like a whispering noise only when it was in the gears, not neutral. Why would it make a rattling noise when accelerating and not decel??