Front Wheel Bearing and Hub Replacement. Pontiac Sun Runner - 4WD (Canada) 1998

For 1990-2009 cars

### Removal Procedure

#### Tools Required

• | J 42119-1 Spindle Nut Socket

• | J 42119-2 Wrench Plate

• | J 8092 Driver Handle

• | J 37781 Rear Axle Remover

• | J 37772 Front Wheel Bearing Race Remover

• | J-2619-A Slide Hammer

1. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the tire and wheel assembly. Refer to Wheel Removal in Tires and Wheels.

Important: Suspend the caliper assembly with wire in order to prevent damage to the brake hose.

3. Remove the two caliper carrier bolts.
4. Remove the brake caliper (3) from the rotor and the steering knuckle.
5. Remove the brake rotor (1) from the wheel hub.

If it is not possible to remove the rotor by hand, use the following steps in order to remove the rotor:

5.1. | Install two 8 mm bolts (2) into the rotor.

5.2. | Tighten the bolts (2) in order to force the rotor off of the wheel hub.

6. On vehicles with two-wheel drive, remove the hub end cap.
7. On vehicles with four-wheel drive, remove the free wheel hub.

Refer to Locking Hub Replacement in this section.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

8. Use the hub bolts in order to install the J 42119-1 and the J 42119-2 to the spindle nut and wheel hub. Be sure to align the wrench with the slots on the spindle nut.

Tighten
Tighten the hub bolts to 2.5 N·m (12.12 lb in).

9. Rotate the spindle nut counterclockwise two full turns in order to disengage the anti-rotation spring from the spindle nut.
10. Remove the J 42119-1 and the J 42119-2 from the wheel hub.
11. Remove the following components from the spindle:

• | The spindle nut

• | The anti-rotation spring

• | The spring back-up plate

12. Use the J 37781 with the J-2619-A in order to remove the following components from the spindle:

• | The wheel hub (1)

• | The wheel hub bearings

• | The oil seals

13. Remove the outer bearing (1) from the hub (2).
14. Remove the wheel bearing oil seal (1) from the hub (2).
15. Remove the snap ring from the hub.
16. Remove the inner bearing (1) from the hub (2).
17. If the inner and outer bearing races are scored or pitted, use the J 37772 and the J 42119-2 in order to remove the inner and outer bearing races.
18. Use a solvent in order to clean any dirt or old grease from the components.

### Installation Procedure

#### Tools Required

• | J 8092 Driver Handle

• | J 37777 Front Wheel Bearing Race Installer

• | J 37774 Wheel Hub Oil Seal Installer

• | J 42119-1 Spindle Nut Socket

| J 42119-2 Wrench Plate

1. Pack the inner and outer bearing assemblies with wheel bearing grease GM P/N 1051344, or the equivalent.
2. Use the J 37777 and J 8092 in order to install the new inner and outer bearing races (if the old races were removed) to the hub.
3. Install the inner bearing (1) to the hub (2).
4. Install the snap ring to the hub.
5. Use the J 37774 in order to install the wheel bearing oil seal to the hub.
6. Install the outer bearing to the hub.
7. Install the wheel hub with the bearings and the oil seals to the spindle.
8. Install the spring back-up plate (2).
9. Install the anti-rotation spring (3).
10. Install the spring nut to the spindle (1).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

11. Use the hub bolts in order to install the J 42119-1 and the J 42119-2 to the spindle nut and the wheel hub. Be sure to align the wrench with the slots on the spindle nut.

Tighten
Tighten the spindle nut to 210 N·m (155 lb ft).

12. On two-wheel drive models, install the hub end cap.
13. On four-wheel drive models, install the free wheel hub. Refer to Locking Hub Replacement in this section.
14. Install the brake rotor to the wheel hub.
15. Install the brake caliper to the rotor and the knuckle. Secure the brake caliper with two caliper carrier bolts.

Tighten
Tighten the brake caliper carrier bolts to 88 N·m (65 lb ft).

16. Install the tire and wheel assembly. Refer to Wheel Installation in Tires and Wheels.
17. Lower the vehicle.