I own a 2003 350z with the 6 speed trans. I already know the factory problem with the syncros. I'm planing to rebuild the transmit ion, but i need your help to make sure i buy the updated parts . Other alternative is to buy performance parts, because i go to solo cross when i can. All the help will be appreciated.

 

Instead of rebuilding the stock one why not just buy a aftermarket thats solid as hell.

 

If you please tell me were to look for that. I prefer an aftermarket because of my solo races every month. I have not raced since the problem started.