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Home >> Chevy Truck >> 2011 >> Silverado 1500 2WD V6-4.3L >> 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) (Rear Brake Rotor Replacement (JD9))Rear Brake Rotor Replacement (J90, J96) (Rear Brake Rotor Replacement (J90, J96))Rear Brake Rotor Replacement (J95) (Rear Brake Rotor Replacement (J95)).

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 to One-Piece Propeller Shaft Replacement (One-Piece Propeller Shaft Replacement).
* For vehicles equipped with a two piece propeller shaft, refer to Two-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.
* For the 11.5 inch axle, use J-34826 socket.

9. Using the J 8614-01 - holder and remover or the J-34826 socket, 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 (Maintenance).
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.
* For the 11.5 inch axle, use J-34826 socket.

6. Holding the J 8614-01 - holder or the J-34826 socket, 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 than 0.40-0.57 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 to One-Piece Propeller Shaft Replacement (One-Piece Propeller Shaft Replacement).
* For vehicles equipped with a two piece propeller shaft, refer to Two-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) (Rear Brake Rotor Replacement (JD9))Rear Brake Rotor Replacement (J90, J96) (Rear Brake Rotor Replacement (J90, J96))Rear Brake Rotor Replacement (J95) (Rear Brake Rotor Replacement (J95)).
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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