Lincoln 8G1Z-4N046-A Seal Assembly - Oil

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Loosen the wheel lug nuts, raise the rear of the vehicle, and support it securely on jackstands while blocking the opposite set of wheels to prevent rolling. Remove the wheels and disconnect the driveshaft from the differential companion flange, fastening it out of the way. Mark the relationship of the pinion flange to the shaft and count the number of exposed threads on the shaft. A flange holding tool or a chain wrench will be needed to keep the companion flange from moving while loosening the self-locking pinion nut. Remove the pinion nut and withdraw the flange, using a two-jaw puller if necessary, avoiding prying or hammering behind the flange or on the end of the pinion shaft. Pry out and discard the old seal, then inspect the seal bore for cleanliness and smoothness. Lubricate the lips of the new seal and fill the space between the seal lips with wheel bearing grease, tapping it evenly into position with a seal installation tool or a large socket to ensure it enters squarely and to its full depth. Install the pinion flange, aligning it with the previously made marks, and if necessary, tighten the pinion nut to draw the flange into place without hammering. Install a new pinion nut and tighten it to the specified torque, then complete the installation by reversing the removal steps.

Loosen the wheel lug nuts. Raise the rear of the vehicle and support it securely on jack stands. Block the opposite set of wheels to keep the vehicle from rolling off the stands. Remove the wheels. Disconnect the driveshaft from the differential companion flange and fasten it out of the way. Mark the relationship of the pinion flange to the shaft, then count and write down the number of exposed threads on the shaft. A flange holding tool will be required to keep the companion flange from moving while the self-locking pinion nut is loosened. A chain wrench will also work. Remove the pinion nut. Withdraw the flange. It may be necessary to use a two-jaw puller engaged behind the flange to draw it off. Do not attempt to pry or hammer behind the flange or hammer on the end of the pinion shaft. Pry out the old seal and discard it. Inspect the seal bore to ensure it is clean and smooth. Lubricate the lips of the new seal and fill the space between the seal lips with wheel bearing grease, then tap It evenly into position with a seal installation tool or a large socket. Make sure it enters the housing squarely and is tapped in to its full depth. Install the pinion flange, lining up the marks made. If necessary, tighten the pinion nut to draw the flange into place. Do not try to hammer the flange into position. Install a new pinion nut, then tighten it to the torque. The remainder of installation is the reverse of removal.

Withdraw the flange. It may be necessary to use a two-jaw puller engaged behind the flange to draw it off. Do not attempt to pry or hammer behind the flange or hammer on the end of the pinion shaft.

After removing the pinion flange, you should pry out the old seal and discard it. Removing the old seal is necessary to replace it with a new one.