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Home >> Chevy Truck >> 2009 >> Silverado 3500 4WD V8-6.0L >> Repair and Diagnosis >> Transmission and Drivetrain >> Differential Assembly >> Pinion Flange >> Service and Repair >> Rear Drive Axle

Rear Drive Axle



Drive Pinion Flange/Yoke and/or Oil Seal Replacement

Special Tools

* J 8614-01 - Flange Holder and Remover
* J 22388 - Pinion Oil Seal Installer
* J 44414 - Pinion Oil Seal Installer



Removal Procedure


Note

Observe and mark the positions of all the driveline components, relative to the propeller shaft and the axles, prior to disassembly. These components include the propeller shafts, drive axles, pinion flanges, output shafts, etc. Reassemble all the components in the exact places in which you removed the parts. Follow any specifications, torque values, and any measurements made prior to disassembly.


1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .
2. Remove the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
3. Remove the rear brake drum, if equipped. Refer to Brake Drum Replacement (Removal and Replacement) .
4. Remove the rear disc brake rotor, if equipped. Refer to Rear Brake Rotor Replacement (JD9) (Service and Repair)Rear Brake Rotor Replacement (JH6) (Service and Repair)Rear Brake Rotor Replacement (JH7) (Service and Repair) .


Note

The following procedure is for the 10.5 or 11.5 inch axles.

5. Remove the rear axle shafts. Refer to Rear Axle Shaft and/or Gasket Replacement (Rear Axle Shaft and/or Gasket Replacement) .


Note

Reference mark the rear propeller shaft to the rear axle pinion yoke.

6. Remove the propeller shaft.

* For vehicles equipped the a one piece propeller shaft, refer toOne-Piece Propeller Shaft Replacement (One-Piece Propeller Shaft Replacement) .
* For vehicles equipped with a two piece propeller shaft, refer toTwo-Piece Propeller Shaft Replacement (Two-Piece Propeller Shaft Replacement) .







Note

Record this measurement for reassembly.

7. Using an inch-pound torque wrench, measure the rotational torque of the differential ring and pinion gear and related components.




8. Place an alignment mark between the pinion and the pinion yoke.






Note

DO NOT reuse the pinion nut, replace with NEW.

9. Using the J 8614-01 - holder and remover , remove and discard the pinion the pinion nut.






Note

Remove the pinion yoke by turning the J 8614-3 (3) clockwise.

10. Using the J 8614-2 (2), J 8614-3 (3) and the J 8614-01 - remover (1), remove the pinion yoke.






Note

DO NOT damage the axle housing.

11. Using a suitable tool, remove the pinion oil seal.



Installation Procedure





1. Using the J 22388 - installer , install the new pinion oil seal.




2. Apply the proper sealant to the splines of the pinion yoke. Refer to Adhesives, Fluids, Lubricants, and Sealers (Fluid Type Specifications) .
3. Align the reference marks and install the pinion yoke.
Caution: Refer to Pinion Flange/Yoke Installation Caution (Pinion Flange/Yoke Installation Caution) .


Note

Tap the pinion yoke until a few threads show through the pinion yoke.

4. Using a soft faced hammer, seat the pinion yoke onto the pinion shaft.
5. Install the washer and a NEW pinion nut.






Note

If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.

6. Holding the J 8614-01 - holder , tighten the pinion nut until the pinion end play is just taken up.
7. Rotate the pinion while tightening the nut to seat the bearings.




Caution: Refer to Fastener Caution (Fastener Caution) .


Note

Compare this measurement with the rotating torque recorded during removal.

8. Using an inch pound torque wrench and tightening in small increments, measure the rotating torque of the pinion until the reading is greater than0.40-0.57 Nm (3-5 lb in) , the rotational torque noted at removal.


Note

Recheck the rotating torque and adjust if necessary.

9. Once the specified torque is obtained, rotate the pinion several times to seat the bearings.


Note

Reference mark the rear propeller shaft to the rear axle pinion yoke.

10. Install the propeller shaft.

* For vehicles equipped the a one piece propeller shaft, refer toOne-Piece Propeller Shaft Replacement (One-Piece Propeller Shaft Replacement) .
* For vehicles equipped with a two piece propeller shaft, refer toTwo-Piece Propeller Shaft Replacement (Two-Piece Propeller Shaft Replacement) .



Note

The following procedure is for the 10.5 or 11.5 inch axles.

11. Install the rear axle shafts. Refer to Rear Axle Shaft and/or Gasket Replacement (Rear Axle Shaft and/or Gasket Replacement) .
12. Install the rear brake drum, if equipped. Refer to Brake Drum Replacement (Removal and Replacement) .
13. Install the rear disc brake rotor, if equipped. Refer to Rear Brake Rotor Replacement (JD9) (Service and Repair)Rear Brake Rotor Replacement (JH6) (Service and Repair)Rear Brake Rotor Replacement (JH7) (Service and Repair) .
14. Install the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
15. Inspect and add axle lubricant to the axle housing, if necessary. Refer to Rear Axle Lubricant Level Inspection (8.6, 9.5 LD Axle) (Rear Axle Lubricant Level Inspection (8.6, 9.5 LD Axle))Rear Axle Lubricant Level Inspection (10.5 Inch Axle) (Rear Axle Lubricant Level Inspection (10.5 Inch Axle))Rear Axle Lubricant Level Inspection (11.5 Inch Axle) (Rear Axle Lubricant Level Inspection (11.5 Inch Axle)) .
16. Remove the support and lower the vehicle.


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