Rear Drive Axle With 108 mm Dia. Inner Constant Velocity Joint

Inner constant velocity joint, checking
The joint should be disassembled to replace dirty grease or for checking the balls and ball tracks for wear and damage.

Disassembling

Note:
^ Ball hub and joint are paired and must be marked before disassembling. Make sure the balls run in the same tracks after assembly.





- Swivel ball hub and ball cage and pull out of joint body in direction of - arrow -.
- Press balls out of cage.





- Tilt ball hub over ball race - arrows - and remove from ball cage.

Checking
- Check joint, ball hub, ball cage and balls for pitting and signs of seizure.

Note:
^ Excessive backlash in the joint will cause knocking or jolts under load change. In such cases the joint must be replaced. Polished areas and ball track marks are not a reason for changing the joint.

Assembling
- Pack grease into joint body (100 mm diameter) or (108 mm diameter) for quantity and type of grease.





- Insert hub into cage via the two chamfers. No specific installation position is required. Push balls into cage.
- Insert hub with cage and balls at a right angle to the joint.





Note:
^ When inserting, make sure that the wide gap - a - on the joint body is aligned with the narrow gap - b - on the hub after swivelling in.





- Swivel hub into joint body; at the same time the hub must be swivelled out of cage - arrows - far enough to allow the balls to fit into the ball tracks.





- Swivel in the hub with balls by applying firm pressure on cage - arrow -.

Checking function of constant velocity joint:
The constant velocity joint has been correctly assembled if the ball hub can be moved by hand forward and backward over its entire axial adjustment range.