Cadillac 84869190 Hub Assembly, Front Whl (W/ Brg & Whl Spd Sen)

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The hub and bearing assembly is sealed for life and must be replaced as a unit if worn or damaged. To remove it, first loosen the front wheel lug nuts, raise the vehicle, and support it securely on jackstands before removing the wheel. For 4WD models, remove the hub cover and unscrew the driveaxle/hub nut using a socket and large breaker bar, bracing a large prybar across two wheel studs or inserting a large screwdriver into the disc cooling vanes to prevent the hub from turning. Next, remove the brake disc and the ABS wheel speed sensor from the hub. From the back side of the steering knuckle, remove the hub retaining bolts-three for 1500 models and four for 2500/3500 models. As the bolts are unscrewed, push in on the driveaxle and pull the hub and bearing out of the knuckle. Remove the disc shield and then the hub from the steering knuckle, ensuring not to pull outward on the driveaxle to avoid separating the inner CV joint. If the hub assembly does not come out easily, tap it from side to side or use water to help free it. For installation, clean the mating surfaces on the steering knuckle, bearing flange, and knuckle bore, ensuring the O-ring is removed with the hub assembly and a new O-ring is installed on the back of the hub. Insert the hub and bearing assembly into the steering knuckle and, for 4WD models, onto the end of the driveaxle, lubricating the splines with multipurpose grease. Position the disc shield and install the bolts, tightening them to the proper torque specifications. Install the wheel speed sensor, brake disc, caliper mounting bracket, and caliper. For 4WD models, install the driveaxle/hub nut and tighten it to the specified torque. Finally, install the wheel, lower the vehicle, and tighten the lug nuts to the correct torque.

First, loosen the rear wheel lug nuts, raise the rear of the vehicle, and support it securely on jackstands while blocking the front wheels and removing the rear wheels.

Install a new oil seal.

Back the nut off until loose, then tighten it hand-tight. If needed, turn the nut counterclockwise to align the closest slot with the keyway in the spindle and install the key, ensuring not to turn the nut more than one slot for alignment.

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