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Home >> Chevrolet >> 2021 >> Trailblazer L >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit AAM >> Repair Instructions - On Vehicle >> Power Transfer Unit Case Replacement >> Removal Procedure
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Removal Procedure

  1. GM5238925Courtesy of GENERAL MOTORS COMPANY

    Front Wheel Drive Shaft- Right Side (1) @ Vehicle - Remove - Front Wheel Drive Half Shaft Replacement - Right Side (AWD) , or Front Wheel Drive Half Shaft Replacement - Right Side (FWD)

  2. GM5207578Courtesy of GENERAL MOTORS COMPANY

    Drivetrain and Front Suspension Cradle (1) @ Vehicle - Remove - Drivetrain and Front Suspension Cradle Removal and Installation (AWD) , or Drivetrain and Front Suspension Cradle Removal and Installation (FWD)

  3. GM5226784Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) @ Vehicle - Remove - Propeller Shaft Replacement

  4. Warm Up Three-Way Catalytic Converter @ Vehicle - Remove - Warm Up Three-Way Catalytic Converter Replacement (L3T_FWD) , or Warm Up Three-Way Catalytic Converter Replacement (L3T_AWD) , or Warm Up Three-Way Catalytic Converter Replacement (LIH)
  5. Transmission Brace @ Vehicle - Remove - Transmission Brace Replacement
  6. GM5263011Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Power Transfer Unit Shift Actuator - Disconnect [2x]

  7. Wiring Harness Retainer (2) - Release [2x]
  8. Support the power transfer unit case with a suitable jack.
  9. GM5263015Courtesy of GENERAL MOTORS COMPANY

    Power Transfer Unit Bolt (1) @ Power Transfer Unit Adapter - Remove

  10. Power Transfer Unit Bolt (2) @ Transmission - Remove [3x]
  11. Power Transfer Unit Case (3) @ Transmission - Remove
  12. GM5263019Courtesy of GENERAL MOTORS COMPANY

    Power Transfer Unit Face Seal (1) - Remove and DISCARD

  13. Transfer components as necessary.
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