Got my car back Friday night after having 4.10's and a Stedda Clutch Quadrant/cable/Firewall Adjuster put in. I can safely say that the shop eliminated 99% of the clunk which I suspect was drivetrain slop. The adjuster has also seemed to cure the 2nd gear crunch/clunk. The notchiness is still there, but consistant in all gears. This might be the culprit with the 3650. The clutch pedal no long shudders or feels sloppy. I would highly recommend anyone with a problematic 3650 try the quadrant/firewall adjuster route.