Note: The front hub and front wheel bearings are non-separable and must be replaced as an assembly.
1. Loosen the front wheel nuts, raise the front of the vehicle and securely support it on struts. Do not place stands under the suspension arms. Set the vehicle's parking brake and block the rear wheels to prevent the vehicle from rolling off the stands. Remove the wheel.
2. Disconnect the anti-roll bar from the suspension arm (see section 4).
3. Loosen the nut securing the ball joint to the steering knuckle and separate the suspension arm from the knuckle (see section 5).
4. Remove the caliper from the steering knuckle and set it aside, hanging it on a wire (see chapter 9, section 3).
5. Pull the disc off the hub and remove the axle shaft (see chapter 8, section 2).
6. Using a Torx N55 head, unscrew the three hub mounting bolts through the hole in the flange (see illustration).
6.6. To unscrew the hub mounting bolts, you will need a Torx N55 head. Do not use a gas wrench for this purpose, otherwise you may damage the bolts!
7. Rock the hub and bearings back and forth and pull it out of the steering knuckle together with the shield (see illustration).
6.7. Pull the hub, bearings and disc shield off the steering knuckle
8. If the hub is replaced with a new one, it is recommended to also replace the boot at the rear of the steering knuckle. Remove it from the steering knuckle using a screwdriver (see illustration).
6.8. Remove the cuff from the steering knuckle using a screwdriver
9. Using a large diameter socket head or a special seal installation tool, install the new seal into the steering knuckle (see illustration). Make sure that the cuff does not cover the holes.
6.9 Using a large diameter socket head, install the new seal in place
10. Install a new O-ring around the rear of the bearing and press it onto the steering knuckle flange (see illustration).
6.10. Hub parts: 1 - hub, 2 - steering knuckle, 3 - shield, 4 - washer, 5 - hub nut, 6 - cuff, 7 - hub mounting bolt, 8 - ring seal
11. Clean the mating surfaces of the steering knuckle, bearing flange and steering knuckle bore. Lubricate the inner bearing race and the lips of the seal with grease and insert the hub and bearing into the steering knuckle. Install the disc shield and insert the three bolts, tightening them to the torque specified in the specifications of this chapter.
12. Install the axle shaft (see chapter 8, section 2).
13. Attach the suspension arm to the steering knuckle (see section 5).
14. Connect the anti-roll bar to the suspension arm (see section 4).
15. Install the brake disc and caliper (see chapter 9, section 3).
16. Fit the hub nut and tighten it securely. Prevent the hub from turning by inserting a screwdriver through the caliper into the vent hole in the brake disc (see chapter 8, section 2).
17. Install the wheel, lower the vehicle and tighten the wheel nuts to the torque specified in the specifications of this chapter.
18. Tighten the hub nut to the torque specified in the specifications chapters 8.
(The article was reprinted from the website: «ChevyMan»)