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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1156 (Transfer Case - BW 4477) >> Repair Instructions - On Vehicle >> Transfer Case Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the transfer case fluid, if necessary. Refer to Transfer Case Fluid Replacement .
  2. Remove the exhaust system. Refer to Exhaust System Replacement (With LY7 and LLT) or Exhaust System Replacement (With LP1) .
  3. Remove the rear propeller shaft. Refer to Rear Propeller Shaft Replacement (RWD) or Rear Propeller Shaft Replacement (AWD) .
    4. Fig 1: View of Jack & Block Of Wood Supporting Transmission
    GM830398Courtesy of GENERAL MOTORS CORP.
  4. Support the transmission with a suitable screw jack and a block of wood.
  5. Remove the transmission mount-to-body bolts.
  6. Using the jack, lower the transmission enough to access the transmission mount-to-transfer case mounting bolts.
    7. Fig 2: View Of Transmission Mount
    GM888315Courtesy of GENERAL MOTORS CORP.
  7. Remove the transmission mount-to-transmission case mounting bolts.
  8. Remove the transmission mount assembly from the vehicle.
  9. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
    10. Fig 3: View of Modular and Instrument Panel
    GM1979770Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not remove the jack and block of wood from under the transmission.
  10. Using another suitable adjustable jack, support the transfer case.
  11. Remove the transfer case bolts (1-6).
  12. Remove the transfer case dampener (7).
  13. Remove the transfer case (8).
  14. Remove the transfer case gasket (9).
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