In reply to 350z247 :
The transmission isn't too bad, it's the body mounted shifter that's the primary problem people suffer with. The transmission mounted MGW shifter fixes most issues. Redline oil and Ford friction modifier in the trans fixed my hard shifting when cold. Steeda's clutch pedal return spring fixes the high RPM lockout. So far I have just the oil/friction modifier in the transmission (was living with Denver winters for awhile), and while drag racing and road course track days shifting at 7,500 RPM I've never had an issue. 2011 GT Brembo (Boss 302 intake/tune) with 147,000 miles and going strong with the original clutch, shifter, pedal spring.