I've search the forums but all I find is the typical grinding of the transmission due to bad syncros and nothing like what i'm experiensing. Sometimes, regardless of the car's temperature, there is a nasty grinding/ slight vibrating noise that seems to come from under the car. The noise is present only when the clutch pedal is not being pressed on, and it goes away once the pedal is pushed. From inside the car it sounds like the noise comes from the center section of the car, but from outside the noise is louder from under the passingers side. The noise sounds kinda nasty but i've noticed no change in the how the car functions or shifts. Regardless, if the noise is there it means taht there is something happening that is not supposed to. Any suggestions are greatly appreciated guys. Thanx