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: Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait for
any hissing to stop, then remove it: Fuel spray is dangerous. Fuel can burn
skin and eyes and cause illness if ingested. Fuel spray is released when there is
pressure in the fuel tank and the fuel-filler cap is re ...
Mazda 6 Service Manual: Clutch unit removal/installation
1. Remove in the order indicated in the table.
2. Install in the reverse order oremoval.
Clutch Cover and Disc Removal Note
1. Install the SSTs.
2. Loosen each bolt one turn at a time in a crisscross pattern until spring
tension is released.
3. Remove the clutch cover and disc.
Flywhee ...