What did it SOUND like though? I'm hearing like metal gnashing and all sorts of horribleness, and even when off the clutch and coasting down (remains like whatever it is spins for a bit until it slows itself down, even though I still may still be going like 30mph or so).
One thing I want to try is braking, it seems to stop when braking, or very very shortly after, maybe due to weight shift. oy.