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: Cruise Control Function
While this function is operating, the headway control operation is canceled and
only the cruise control function operates.
The vehicle speed can be set more than about 25 km/h (16 mph).
Use the cruise control function on expressways and other highways which do not
require a lot of repeated acc ...
Mazda 6 Service Manual: Customer Assistance (Canada)
Satisfaction Review Process
Your complete and permanent satisfaction is of primary concern to Mazda. All
Authorized Mazda Dealers have both the knowledge and tools to keep your Mazda in
top condition. In our experience, any questions, problems, or complaints regarding
the operation of your Ma ...