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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 938 (REAR DRIVE AXLE)REPAIR INSTRUCTIONSDIFFERENTIAL REPLACEMENTINSTALLATION PROCEDURE
2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the ring gear, if necessary. Refer to Drive Pinion and Ring Gear Replacement .
  2. Install the differential side bearings, if necessary. Refer to Differential Side Bearings Replacement .
  3. Lubricate the differential side bearings with axle lubricant. Use the proper fluid. Refer to Fluid and Lubricant Recommendations .
    4. Fig 1: View Of Differential Case & Axle Housing
    GM667660Courtesy of GENERAL MOTORS CORP.
  4. Place the case, with the bearing cups installed, into the axle housing.

    Support the case in order to keep the case from falling out of the axle housing.

    5. Fig 2: Identifying Bearing Cap Bolt
    GM667502Courtesy of GENERAL MOTORS CORP.
  5. Install the bearing caps and the bolts. Do not torque the bearing cap bolts at this time.
  6. Adjust the differential side bearing preload. Refer to Differential Side Bearing Preload Adjustment (8.6 Inch Axle)  or Differential Side Bearing Preload Adjustment (9.5, 9.5LD Inch Axles) .
  7. Adjust the backlash. Refer to Backlash Adjustment (8.6 Inch Axle)  or Backlash Adjustment (9.5 Inch Axle) .
  8. Perform a gear tooth contact pattern check. Refer to Gear Tooth Contact Pattern Inspection .
    9. NOTE: Refer to Fastener Notice .
  9. Tighten the bearing cap bolts.

    Tighten:  Tighten the bearing cap bolts to 85 N.m (63 lb ft).

  10. Install the axle shafts. Refer to Rear Axle Shaft Replacement (8.6, 9.5 LD Axle)  or Rear Axle Shaft Replacement (9.5 HD Axle) .
  11. Fill the axle with the proper lubricant. Refer to Lubricant Replacement - Rear Drive Axle (8.6 Inch Axle)  or Lubricant Replacement - Rear Drive Axle (9.5 Inch LD Axle)  or Lubricant Replacement - Rear Drive Axle (9.5 Inch HD Axle) .
  12. Lower the vehicle.
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.