Hello all, Recently swapped out my old saggy and put my rebuilt M21 Muncie in my car all went well but it makes a rock crusher type noise and even does it while in neutral. I’ve replaced the throwout bearing and have had the trans in and out a few times now the only thing that keeps it from making the whirring/gear noise is pushing the clutch pedal in. The car runs good and the trans shifts smoothly and stays in gear but the noise persists in 1-2-3 and reverse but not fourth. When driving around it seems to quiet down Could this be a pilot bearing or a clutch / clutch-linkage issue? Or is something inside my gear box wrong?