Hey guys I bought a solid plate flywheel for my 2003 350z and didn't have problems at first. But now a few months later it get squeaky/creaks alot when I shift. Any ideas why or how to fix it?

 

I've seen more than one thread about the pivot ball for the throw-out bearing arm breaking off. With your recent clutch service I would go straight to checking that. Also, a common source of squeaks, creeks, clicks and pops from the clutch pedal are in the pedal assembly itself. It's the kind of contraption that needs some lube to work quietly.