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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1613 (Transfer Case - NVG 149-NP (One Speed Automatic)) >> Repair Instructions >> Transfer Case Output Shaft Seal Replacement - Rear >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using the J 45380,  install a NEW rear output shaft bushing.
    • Install the bushing or the finger section of the J 45380. 
    • Install the finger section to the main body of the J 45380. 
    • Position the bushing and tool to the case.
    • Using a hammer and the J 45380,  install the bushing.
    Fig 1: Installing Rear Output Shaft Bushing Using J 45380
    G01481035Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Ensure the drain hole on the boot of the rear output shaft seal is facing down toward the ground.
  2. Using the J 37668-A,  install a NEW front output shaft seal.
  3. Install the rear propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT-ONE PIECE  .
  4. Check the fluid level. Add fluid, if necessary.
  5. Install the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .
    Fig 2: Installing Front Output Shaft Seal Using J 37668-A
    G01481036Courtesy of GENERAL MOTORS CORP.
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