WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Check spline portion for wear or damage.
Check frictional surfaces of low one-way clutch and needle bearing for wear or damage.
Fig 1: Checking Frictional Surfaces Of Low One-Way Clutch And Needle Bearing For Wear Or Damage