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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1010 (FRONT DRIVE AXLE)REPAIR INSTRUCTIONSDIFFERENTIAL CARRIER ASSEMBLY BUSHING REPLACEMENTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the differential carrier assembly. Refer to Differential Carrier Assembly Replacement .
  2. Remove the upper differential carrier assembly bushing by performing the following steps:
    1. Install the J 36616-2 (1), the J 33791-1 (2), the thrust bearing (3), the J 21474-18 (4), and the forcing screw as shown.
    2. Remove the upper differential carrier assembly bushing by holding the forcing screw and slowly tightening the J 21474-18.
    3. Fig 1: Remove The Upper Differential Carrier Assembly Bushing Using J 36616-2, J 33791-1, Thrust Bearing, J 21474-18 & Forcing Screw
    GM893247Courtesy of GENERAL MOTORS CORP.
  3. Remove the lower differential carrier assembly bushing by performing the following steps:
    1. Install the J 21474-18 (1), the thrust bearing (2), the J 33791-1 (3), the J 36616-2 (4), and the forcing screw as shown.
    2. Remove the lower differential carrier assembly bushing by holding the forcing screw and slowly tightening the J 21474-18.
    4. Fig 2: Removing The Lower Differential Carrier Assembly Bushingj 21474-18, Thrust Bearing, J 33791-1, J 36616-2, & Forcing Screw
    GM892847Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.