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.
  1. Lubricate the differential bearing assembly, the differential coil assembly and the differential bearing race with axle lubricant. Use the proper fluid. Refer to Fluid and Lubricant Recommendations .
  2. Fig 1: Differential Bearing Race
    GM851633Courtesy of GENERAL MOTORS CORP.
  3. Install the locking differential coil assembly.
  4. Install the differential bearing race.
  5. Fig 2: Differential Bearing Retainer
    GM851631Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.