Synchro problems?
I've got a 2000 SS, bone stock except for an LS6 clutch that's been in the car for about two years. Since about Friday, I've been having minor issues with the tranny. It's been extremely hard to get the car into reverse, and sometimes it will grind. This has happened both cold and at operating temperature. Also, once or twice it's started to feel like... "something's wrong" between gears and with the clutch disengaged at low speeds. This is the only manual car I've ever had and it hasn't had problems up 'til now, so I don't really know how to better describe it. Also, I've tested the clutch under power and as far as I can tell, it's not slipping. RPM/MPH are normal in every gear and at every speed under acceleration.
Help me diagnose? Thanks in advance.

