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: Inspecting Engine Oil Level
1. Be sure the vehicle is on a level surface.
2. Warm up the engine to normal operating temperature.
3. Turn it off and wait at least 5 minutes for the oil to return to the oil pan.
4. Pull out the dipstick, wipe it clean, and reinsert it fully.
5. Pull it out again and examine the level.
The ...
Mazda 6 Service Manual: Power window regulator removal/installation
1. Disconnect the negative battery cable.
2. Remove the front door glass/rear door glass.
3. Remove the front door speaker/rear door speaker.
4. Remove the power window motor.
5. Remove the nuts.
6. Insert hand through the speaker installation hole, rotate the regulator
drum housing in the ...