Avalanche 2500 4WD V8-8.1L VIN G (2003)
Pinion Flange: Service and Repair
Front Differential
Differential Drive Pinion Flange/Yoke, Seal, and Dust Deflector Replacement - Front
Tools Required
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J8614-01 Flange and Pulley Holding Tool
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J36366 Pinion Oil Seal Installer
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the tire and wheel assemblies.
3. Remove the brake calipers.
4. Remove the differential carrier assembly shield, if equipped.
5. Reference mark the relationship of the propeller shaft to the front axle pinion yoke.
6. Remove the yoke retainer bolts (6) and the yoke retainers (7) from the front axle pinion yoke (1).
Notice: When removing the propeller shaft, do not attempt to remove the shaft by pounding on the yoke ears or using a tool between the yoke and the
universal joint. If the propeller shaft is removed by using such means, the injection joints may fracture and lead to premature failure of the joint.
7. Disconnect the propeller shaft universal joint (2) from the front axle pinion yoke (1).
Wrap the bearing caps with tape in order to prevent the loss of bearing rollers.
8. Support the propeller shaft and move out of the way as necessary.
9. Measure the torque required in order to rotate the pinion. Use an inch-pound torque wrench. Record the torque value for reassembly. This will
give the combined preload for these components:
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The pinion bearings
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The pinion seal
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The carrier bearings
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The axle bearings
