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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 28 (FRONT DRIVE AXLE)REPAIR INSTRUCTIONSDIFFERENTIAL CARRIER ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE
2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Differential Mounting Nut, Bolt & Washer
    GM821616Courtesy of GENERAL MOTORS CORP.
  1. Install the differential carrier assembly to the vehicle.
  2. Perform the following procedure before installing the axle mounting bolts.
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    3. Apply Threadlocker GM P/N 12345382 (Canadian P/N 10953489) to the threads of the bolt.
    3. NOTE: Refer to Fastener Notice .
  3. Install the differential carrier assembly right side axle mount bolt and nut.

    Tighten:  Tighten the bolts to 100 N.m (75 lb ft).

  4. Install the differential carrier assembly left side axle mount bolt and nut.

    Tighten:  Tighten the bolts to 100 N.m (75 lb ft).

  5. Remove the transmission jack.
  6. Install the lower control arm crossmember. Refer to Crossmember Replacement (Lower Control Arm) .
    7. Fig 2: Identifying Vent Hose & Differential Carrier Case Assembly
    GM865993Courtesy of GENERAL MOTORS CORP.
  7. Connect the vent hose (1) to the differential carrier case assembly (2).
  8. Install the wheel drive shafts. Refer to Wheel Drive Shaft Replacement .
  9. Install the front propeller shaft to the differential carrier assembly. Refer to Front Propeller Shaft Replacement .
  10. Inspect the lubricant level and add, if necessary. Refer to Lubricant Level Inspection - Front Drive Axle .
  11. Install the catalytic converter guard. Refer to Catalytic Converter Guard Replacement .
  12. Install the engine protection shield. Refer to Engine Protection Shield Replacement .
  13. Remove the jack or utility stands.
  14. Lower the vehicle.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.