Side Gear and Pinion Mate Gear

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

If any cracks or damage are found on the surface of the teeth, replace with new one.
If any worn or chipped marks are found on the side of the side gear and pinion mate gear which contact the thrust washer, replace with new one.
Replace both side gear and pinion mate gear as a set when replacing side gear or pinion mate gear.