Replacing the front hub bearings (Opel Vectra B)

1. Remove the steering knuckle.

2. To remove the hub from the steering knuckle, use a press and a tubular mandrel of the appropriate diameter.

3. Install the steering knuckle with the inside facing up and, using a metal drift, remove the hub from the hub bearings.

4. Using a puller, remove the inner bearing race from the hub.

5. Remove the bearing retaining ring from the inside of the steering knuckle.

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6. If necessary, install the inner bearing race back and, supporting the inner part of the steering knuckle on stands and using a tubular drift, press the bearing out of the steering knuckle.

7. Clean the hub and steering knuckle from dirt and grease.

8. Securely fasten the steering knuckle to the stands and install the bearing on it. Install the bearing using a tubular mandrel, which should press on the outer ring of the bearing.

9. Secure the bearing with a new retaining ring, which should fit into the grooves in the steering knuckle.

10. Press the hub into the bearing using a tubular mandrel that presses on the inner bearing race.

11. Install the steering knuckle together with the hub onto the vehicle.