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: Child-Restraint Precautions
Mazda strongly urges the use of child-restraint systems for children small enough
to use them.
You are required by law to use a child-restraint system for children in the U.S.
and Canada. Check your local and state or provincial laws for specific requirements
regarding the safety of children ...
Mazda 6 Service Manual: Side protector removal
1. Pry the side protector end 20-30 mm {0.8-1.1 in} using a flathead
screwdriver or a razor.
Warning
Using a razor with bare hands can cause injury. Always wear gloves
when using a razor.
Note
The side protector is installed with double-sided adhesive tape.
If the side protector ...