Sub-Gear Assembly

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check pinion gear for damage and wear. If damage is found, replace with a new sub-gear assembly.
Check bearing while at rotating with noise, and then check bearing ball race with dent, worn, or damaged. If any damage is found, replace with a new sub-gear assembly.