Came across 2 posts mentioning Nissan upgraded the 5th gear synchros in the later model Zs. Is this true?
2013 Nissan 370z
Sticky: 370Z Transmission Failures (6MT)
"Well known that the Z has crappy synchros.
They toughened up the 5th gear synchro in mid10 and again in early 11. By all measures the mid11s seem to have dramatically better 5th gear behavior."