Inner constant velocity joint, checking: Installing

Fig 1: Inserting Ball Hub Over Both Chamfers Into The Ball Cage

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert ball hub over both chamfers into the ball cage. The hub can be installed in any position. Press balls into the cage.
Insert hub with cage and balls at right angle to the joint.

Fig 2: Identifying Wide Space On Joint Housing Aligned With The Narrow Space On The Hub

Courtesy of VOLKSWAGEN UNITED STATES, INC.

When inserting make sure that the wide space - a - on joint housing is aligned with the narrow space - b - on the hub after swivelling in.
Chamfer on inner diameter of ball hub (splines) must face larger diameter of joint housing.

Fig 3: Ball Hub Installed With Hub Able To Be Swivelled Out Of The Cage

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install ball hub, whereby the hub must be swivelled out of the cage - arrows - far enough to allow the balls to fit into the ball tracks.

Fig 4: Pressing Cage Firmly Until Hub Is In Position

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Check operation of constant velocity joint:

The constant velocity joint is correctly assembled when the ball hub can be moved by hand backward and forward over its entire axial movement range.