Colorado 4WD V8-5.3L (2010)
Pinion Gear: Service and Repair
Drive Pinion and Ring Gear Replacement
Special Tools
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J 8614-01 Flange and Pulley Holding Tool
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J 22536 Pinion Driver
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J 33782 Pinion Oil Seal Installer
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J 38694 Extension Housing Oil Pump/Seal Installer
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Description and Operation).
2. Remove the axle shafts. Refer to Rear Axle Shaft Replacement (See: Drive Axles, Bearings and Joints/Axle Shaft Assembly/Axle Shaft/Service
and Repair).
3. Remove the differential assembly. Refer to Differential Replacement ().
4. Remove the drive pinion yoke and the oil seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement (See: Pinion Flange/Service and
Repair/Rear Drive Axle).
5. Install the J 22536 as shown.
Ensure that the J 22536 is firmly seated on the pinion.
6. Drive the pinion out using the J 22536 and a hammer.
Strike the J 22536 slowly. Do not let the pinion fall out of the rear axle housing.
7. Remove the collapsible spacer from the pinion. Discard the spacer.
8. Remove the pinion bearings and the cups. Refer to Differential Drive Pinion Gear Bearing Replacement (8.6 Inch Axle) (See: Pinion
Bearing/Service and Repair/Rear Drive Axle/Differential Drive Pinion Gear Bearing Replacement (8.6 Inch Axle)) Differential Drive Pinion Gear
Bearing Replacement (8.0 Inch Axle) (See: Pinion Bearing/Service and Repair/Rear Drive Axle/Differential Drive Pinion Gear Bearing
Replacement (8.0 Inch Axle)).
9. Remove the left-hand threaded ring gear bolts. Discard the bolts.
10. Remove the ring gear from the differential. Drive the gear off with a brass drift if necessary.
Installation Procedure