Wheel Bearing/Hub Replacement - Front

Changing a Front Hub/Bearing on an S-Series with pictures by SATURNFAN Twin Cam

SA9159S Front Wheel Bearing Remover/Installer

Disassembly Procedure

1. Remove the steering knuckle/hub assembly from the vehicle.
2. Remove the ABS wheel speed sensor from the knuckle.





Important

If the hub or bearing is removed from the knuckle, a new bearing must be used during assembly.

3. Assemble the SA9159S (or equivalent) with following part numbers:
• 1 -Hub driver
• 2 - Hub driver screw
• 3 - Bridge retainer
• 4 - Bridge




4. Secure the entire setup in a vice (by the bridge) as shown in the illustration.
5. While holding the hub driver with a wrench, tighten the hub driver screw to extract the hub.




6. If the inner race of bearing is pulled out with the hub in the previous step, remove the race from the hub using the following part numbers:
• 8 - Inner race puller
• 9 - 2 bridge retainer plates
• 10 - 2 bolts
• 11 - 2 flat washers Inspect the hub at the bearing location for pitting, scoring, wear, or corrosion. Replace if necessary.




7. Remove the steering knuckle from the vice.
8. Remove the bridge retainer and the bridge.
9. Remove the bearing retainer snap ring.




10. Place the knuckle/bearing assembly in a shop press as shown in illustration, using the following part numbers:
• 5 - Knuckle support tube
• 7 - Small driver
11. Press out the bearing. Inspect the bore of knuckle for pitting, scoring wear, or corrosion. If damage cannot be easily cleaned up with light sanding, replace the knuckle.

Assembly Procedure

1. Using the large driver (part number 6), press in the new bearing, as shown in the illustration, until seated.





Important

When performing this operation, the small driver (part number 7) must be used to support the bearing inner race with its small (pilot) side facing towards the press, away from the bearing.

2. Press in the hub as shown in illustration, using part the numbers:
• 5 - Knuckle support tube
• 7 - Small driver




3. Install the bearing retainer snap ring.
4. Install the ABS wheel speed sensor into the knuckle with the fastener.
Tighten

Tighten the ABS Wheel Speed Sensor to 8 N·m (6 lb ft).