Inspection After Removal

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.

Move the joint up and down, left and right, and in the axial direction. Check for any rough movement or significant looseness.
Check the boot for cracks or other damage, and for any grease leakage.
If necessary, disassemble the rear drive shaft, and repair as necessary.

Fig 1: Checking Boot For Cracks And Grease Leakage
Courtesy of NISSAN NORTH AMERICA, INC.