Ford 7L1Z-1104-D Hub Assembly - Wheel

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The hub and bearing assembly is a sealed unit and isn't serviceable. If it's defective, it must be replaced. On Expedition/Navigator models with independent rear suspension, the rear hub/bearing assembly is replaced with the same procedure as for front hub/bearing assemblies. Put the vehicle in gear, apply the parking brake and break loose the driveaxle/hubnut with a socket and large breaker bar. If the vehicle is equipped with air suspension, turn off the air suspension system. The switch is located in the area of the right kick panel. Loosen the wheel lug nuts, raise the vehicle and support it securely on jackstands. Remove the wheel. Remove the driveaxle/hub nut. Unbolt the brake caliper and hang it out of the way with a piece of wire, then remove the caliper anchor bracket and the brake disc. On models with 4-wheel ABS (4WABS), remove the disc splash shield from the steering knuckle, then remove the speed sensor retaining bolt, remove the sensor from the knuckle and set the sensor and wire harness safely aside. On Expedition/Navigator models with independent rear suspension, separate the outboard end of the driveaxles from the hub, using a puller. Remove the hub assembly-to-steering knuckle bolts. Tap the hub assembly from side-to-side to break it loose from the steering knuckle. Pull the hub assembly off the end of the driveaxle. Wrap the end of the driveaxle with a rag to prevent damaging it. If the hub is stuck on the splines on the end of the driveaxle, use a puller to free it. Installation is the reverse of the removal procedure. Be sure to lubricate the driveaxle splines with multi-purpose grease, and tighten all of the fasteners. If the hub-to-knuckle interface was equipped with an O-ring, install a new O-ring upon reassembly.

The hub and bearing assembly is a sealed unit that is responsible for supporting the wheel and allowing it to rotate smoothly.