Due to the special tools and expertise required to press the hub and bearings from the rear knuckle, this job should be left to a professional mechanic. However, the knuckle and hub may be removed as an assembly and taken to an automotive machine shop or qualified repair facility for service. Loosen the rear drive axle/hub nut, rear wheel lug nuts, block the front wheels, raise the rear of the vehicle, and support it securely on jackstands. On models with rear drum brakes, remove the brake drum and on models with rear disc brakes, remove the brake disc. Remove the hub mounting bolts from the back of the knuckle and suspend the backing plate safely aside. Push the drive axle through the hub splines as the hub and bearing assembly is removed. If the drive axle sticks in the hub, you'll have to push it out with a puller. Tighten the hub mounting bolts, brake caliper mounting bracket bolts, caliper mounting bolts, and the wheel speed sensor bolt. Tighten the drive axle/hub nut and the wheel lug nuts. Installation is the reverse of removal.