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: Replacing Interior Light Bulbs
Overhead lights/Front map lights (LED type), Rear map lights (LED type)
The LED bulb cannot be replaced as a single unit because it is an integrated
unit. The LED bulb has to be replaced with the unit. We recommend an Authorized
Mazda Dealer when the replacement is necessary.
Overhead lights/F ...
Mazda 6 Service Manual: Front shock absorber and spring 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-sensor (axle side) and fix it to an appropriate pl ...