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: Towing hooks
Caution
The towing hooks should be used only in an emergency (to get the
vehicle out of a ditch or a snow bank, for example).
When using the towing hooks, always pull the cable or chain in a
straight direction with respect to the hook. Apply no sideways force.
FRONT
1. Remove the tow ...
Mazda 6 Service Manual: Drive shaft (mtx) disassembly/assembly
1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.
Clip Disassembly Note
1. Mark the drive shaft and outer ring for proper assembly.
Caution
Mark with paint; do not use a punch.
2. Remove the clip.
Balls, Inner Ring, Cage Disassembl ...