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Rear bearing replacment?
Place the rear axle solidly on jack stands. Loosen the center section cover and drain the oil (if there is any left to drain), then remove the cover. Remove the rear wheels, brake calipers and hanger brackets, and tie them out of the way. (Your 9C1 DOES have rear discs, right?) Remove the differential pinion shaft lock bolt, and allow the shaft to slide downward and out. Push the axles inward far enough to expose the locking clips and remove them. Once the 'C' clips are removed, you can slide the axles out of the axle tubes. Be careful as you near the end so you don't damage the seals with the end of the axle shafts.
Set up a bearing splitter in your press and push the axles out of the outer bearings. Clean the shoulder and seal surface with crocus paper ot a medium stone, and start the new bearing onto the axle. Make sure the shield is on the outboard end of the axle. Press the nearing into place so the inner race contacts the axle shoulder. Repeat the procedure for the other axle, or take the axles to your favorite parts house and have new bearings pressed on. Replace any damaged seals, install the axles, 'C' clips, and differential pinion shaft and lock bolt. Torque the lock bolt to 8-10 ft/lb. Install the cover and new gasket if necessary, and fill the housing with the specified oil and additive (if necessary). Reassemble the brakes and install the wheels. Drive on.
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