rattling coming from the shifter at certain RPM bands. I will check torque on everything. Yes, i did install the shims.
A little history:
I've had the Z1 short throw for a while now with the stock mount. I just installed the Z speed solid mount and took it out a few times and did not notice the rattling. Now its there. Im thinking maybe the through bolt nut needs to be re-tightened as i was careful not to over-tighten it (maybe too careful)