I did not know that!
But you're right about the fact that no clutch will eliminate it. Some styles will actually make it worse if they have less damping in the disk. You ought to hear mine when I'm idling thru a parking lot. :disgust:
I did not know that!GM had ZF cut the gears differently when they put the ZF-6 behind a Duramax, eliminating (or minimizing) the growl.