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: Rear window glass removal
1. For the 4SD, remove the following parts:
(1) Remove the headliner.
(2) Remove the rear package trim.
2. For the 5HB, remove the following parts.
(1) Remove the rear wiper arm and blade.
(2) Remove the liftgate lower trim.
3. Apply protective tape along the edge of the body to pr ...
Mazda 6 Service Manual: Fuel line pressure inspection
Warning
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injuries or death. Fuel can also irritate skin and eyes. To
prevent this, always complete the BEFORE REPAIR PROCEDURE. (See BEFORE
REPAIR PROCEDURE.)
Caution
Disconnecting/connecting the quick r ...