370z Nissan OEM Synchro Baulk Ring Gear, 5th & 6th

Requires Revised Input shaft (original p/n 32200-CD51D), use 32604-CD105-KT as a kit. This synchro will NOT fit the original 04-08 transmissions until the input shaft has been replaced, so we recommend the kit linked above. 07-08 HR Models will also require updated 6th Gear