Sierra 2500 4WD V8-6.0L (2008)
Pinion Flange: Service and Repair
Front Drive Axle
Front Differential Drive Pinion Flange/Yoke, Seal, and Dust Deflector Replacement
Tools Required
*
J 8614-01 Flange and Pulley Holding Tool
*
J 36366 Pinion Oil Seal Installer
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Drain the drive axle. Refer to Front Axle Lubricant Replacement (See: Fluid - Differential/Service and Repair/Removal and Replacement/Front
Drive Axle) .
3. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation (See: Maintenance/Wheels and Tires/Service and
Repair) .
4. Remove the brake calipers. Refer to Front Brake Caliper Replacement (JH6, JH7) Front Brake Caliper Replacement (JD9, JF3, JF7) .
5. Remove the engine shield, if equipped. Refer to Engine Shield Replacement .
6. Reference mark the relationship of the propeller shaft to the front axle pinon yoke.
7. 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.
8. 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.
9. Support the propeller shaft and move out of the way as necessary.
10. Measure the torque required in order to rotate the pinion. Use an inch-pound torque wrench. Record the torque value for reassembly. This will
