Differential Assembly Pinion Bearing Service & Repair
Pinion Bearing: Service and Repair
Drive Pinion Bearings Replacement (8.6, 9.5 Inch Axle)
Special Tools
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DT 47688 - Pinion Bearing Remover, 8.6 Inch Axle
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J 7818 - Inner Bearing Race Installer
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J 8092 - Universal Driver Handle 3/4 inch -10
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J 8611-01 - Rear Pinion Bearing Race Installer
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J 8614-01 - Flange and Pulley Holding Tool
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J 22306 - Pinion Cup Bearing Installer-Rear
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J 22912-B - Split Plate Bearing Installer
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J 22388 - Pinion Oil Seal Installer
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J 22828 - Input/Counterbalance Race Installer
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J 36614 - Inner Pinion Bearing Installer
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J 45780 - Pinion Bearing Cup Installer
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
2. Remove the differential assembly. Refer to Differential Replacement (8.6 Inch Axle) (See: Service and Repair/Removal and Replacement/Rear
Drive Axle/Differential Replacement (8.6 Inch Axle))Differential Replacement (9.75, 10.5 and 10.75 Inch Axles) (See: Service and
Repair/Removal and Replacement/Rear Drive Axle/Differential Replacement (9.75, 10.5 and 10.75 Inch Axles)).
3. Remove the drive pinion from the axle. Refer to Drive Pinion and Ring Gear Replacement (8.6 Inch Axle) (See: Pinion Gear/Service and Repair
)Drive Pinion and Ring Gear Replacement (9.75, 10.5 and 10.75 Inch Axles) (See: Service and Repair/Removal and Replacement/Rear Drive
Axle/Drive Pinion and Ring Gear Replacement (9.75, 10.5 and 10.75 Inch Axles)).
Note: If servicing the 8.6 inch axle go to step 4. If servicing the 9.5 inch axle go to step 5.
4. Using the DT 47688 - Pinion Bearing Remover 8.6 Inch Axle and a press, remove the pinion bearing from the drive pinion.
