GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Driveline/Axle 🢒 Propeller Shaft 🢒 Rear Output Shaft Seal Replacement

Tools Required

    • J 37668-A Output Shaft Seal Installer
    • J 45380 Transfer Case Rear Bushing Remover and Installer

Removal Procedure

    Object Number: 715670 Size: SH
  1. Remove the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .
  2. Remove the rear propeller shaft. Refer to One-Piece Propeller Shaft Replacement .
  3. Pry out the rear output shaft seal, using a flat-tipped screwdriver.

    4. Object Number: 801274 Size: SH
  4. Inspect the rear output shaft bushing for scoring or wear.
  5. Remove the rear output shaft bushing if required, using the J 45380 .
    6. • Install the finger section of the J 45380 into the front of the bushing.
    • Install the tube and forcing screw to the finger section. Ensure the forcing screw is backed out.
    • Using a wrench on the forcing screw, remove the rear output shaft bushing.

Installation Procedure

    Object Number: 801307 Size: SH
  1. Using the J 45380 , install a NEW rear output shaft bushing.
    2. • 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.

    Object Number: 687288 Size: SH

    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 One-Piece Propeller Shaft Replacement .
  4. Check the fluid level. Add fluid, if necessary.
  5. Install the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .