I get kind of a high metal whinning/whirring noise when i let off the throttle or downshift and let of the clutch. It doesn't sound like metal to metal but more something almost mosquitoish. If your a Star Trek fan the noise from The Wink of eye is what it kind of sounds like. If i let off the throttle I hear it and then grab the clutch its gone but downshift and let off the clutch there it is again. Kind of sound like pressure on something from the left side maybe front drive belt pullyish. Any ideas? Thanks