1. Verify that the joint shaft is not twisted or cracked.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly and freely.

Drive shaft
Joint shaft removal/installationMazda 6 Service Manual: How to Use Pandora® (Some models)
What is Pandora®?
Pandora®*1 is free personalized Internet radio. Simply enter a favorite artist,
track, genre, and Pandora® will create a personalized station that plays their music
and more like it. Rate songs by giving thumbs-up and thumbs-down feedback to further
refine your station, d ...
Mazda 6 Service Manual: Rear shock absorber removal/installation
Caution
Performing the following procedures without first removing the ABS
wheel-speed sensor may possibly cause an open circuit in the harness if it
is pulled by mistake. Before performing the following procedures, remove the
ABS wheel-speed sensor (axle side) and fix it to an appropri ...