Constant velocity joints (known as CV joints) allow a drive/axle shaft to transmit power through different angles with out a noticeable increase in friction or vibration and contains a constant rotational speed.
In automotive CV joints are use on the axle shaft to transmit the power from the gearbox/differential to the hub.
on some 4WD their even used on the end of the drive shaft (propeller shaft) for a smoother transmit of torque from the front to the back differential.
Constant-velocity joints are packed with grease and protected by a rubber boot a split boot will alow contaminant from the road and will result in quicker wear.
How to replace a worn CV joint
CV joint kit : New boot , 2 clamp ,C clip, Grease and CV
Step 1. Remove CV/ Hub nut 32mm in my case
Step 2. Remove all link to the hub (eg tie rod)
Step 3. Remove boot clamp.
Step 4. Lift the hub off the CV
Step 5. hit back of CV to remove from axle shaft
Step 6. As seen here CV is removed so now replace the C clip.
Step 7. Assemble CV.
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