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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Transfer Case - NVG 236/246-NP8 (Two-Speed Automatic) Service) >> Repair Instructions >> Transfer Case Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Raise the vehicle. Refer to LIFTING & JACKING THE VEHICLE in General Information.
  2. Remove the transfer case shield from the crossmember. Refer to Transfer Case Shield Replacement .
  3. Remove the brace from the transfer case left side shown, if equipped.
  4. Drain the transfer case of fluid. Refer to Transfer Case Fluid Replacement .
  5. Remove the rear propeller shaft from the vehicle.
  6. Remove the front propeller shaft from the vehicle. Refer to PROPELLER SHAFT REPLACEMENT - FRONT in Propeller Shaft.
    Fig 1: Removing Brace From Transfer Case Left Side
    G01671236Courtesy of GENERAL MOTORS CORP.
  7. Remove the motor/encoder electrical connector.
    Fig 2: Removing Motor/Encoder Electrical Connector
    G01671237Courtesy of GENERAL MOTORS CORP.
  8. Remove the electrical wiring harness from the transfer case.
    Fig 3: Removing Electrical Wiring Harness From Transfer Case
    G01671238Courtesy of GENERAL MOTORS CORP.
  9. Remove the vent hose from the transfer case.
  10. Support the transmission with a suitable jack stand.
    Fig 4: Removing Vent Hose From Transfer Case
    G01671239Courtesy of GENERAL MOTORS CORP.
  11. Remove the transmission mount retaining bolts from the transmission support.
    Fig 5: Removing Transmission Mount Retaining Bolts From Transmission Support
    G01671240Courtesy of GENERAL MOTORS CORP.
  12. Remove the transmission support mounting bolts from the frame.
  13. Remove the transmission support assembly. Refer to TRANSMISSION SUPPORT in Transmission.
    Fig 6: Removing Transmission Support Assembly
    G01671241Courtesy of GENERAL MOTORS CORP.
  14. Remove the transmission mount from the transfer case adapter (automatic transmission only).
    Fig 7: Removing Transmission Mount From Transfer Case Adapter (Automatic Transmission Only)
    G01671242Courtesy of GENERAL MOTORS CORP.
  15. Remove the transfer case to the transfer case adapter retaining nuts.

    Important:  The following service procedure should be performed with the aid of another technician.

  16. Remove the transfer case from the transfer case adapter straight back toward the rear of the vehicle.
  17. Lower the front of the transfer case.
  18. Raise the rear of the transfer case so that it above the torsion bar bracket.
  19. In a downward motion, remove the transfer case from the vehicle.
    Fig 8: Removing Transfer Case To Transfer Case Adapter Retaining Nuts
    G01671243Courtesy of GENERAL MOTORS CORP.

    Important:  If during the removal of the transfer case the gasket becomes damaged, do not reuse the gasket. Replace the damaged gasket with a new one. DO NOT use any type of sealant in place of the gasket.

  20. Remove the transfer case gasket.
    Fig 9: Removing Transfer Case Gasket
    G01671244Courtesy of GENERAL MOTORS CORP.
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