GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2004 🢒 Express 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Balancer Shaft Front Bearing and Rear Bearing Replacement

Tools Required

    • J 26941 Bushing/Bearing Remover
    • J 38834 Balance Shaft Service Kit

Removal Procedure

    Important: The balance shaft and the front bearing are serviced only as a package. Do not remove the bearing from the balance shaft.

  1. Remove the balance shaft. Refer to Balance Shaft Replacement .

    2. Object Number: 340081 Size: SH

    Caution: Wear safety glasses in order to avoid eye damage.

  2. Use the J 38834 and the J 26941 in order to remove the balance shaft rear bearing.
    3. 2.1. Install J 26941 legs behind the balance shaft rear bearing and secure.
    2.2. Install the J 38834-1 with the short threaded end through the balance shaft bore in the front of the engine block.
    2.3. Install the J 38834-1 into J 26941 .
    2.4. Slide the J 38834-2 onto the J 38834-1 and into the balance shaft bore of the engine block.
    2.5. Install the J 38834 bearing, washer, and nut onto the J 38834-1.
    2.6. Using a wrench secure the J 38834-1 and then rotate the J 38834 nut clockwise until the balance shaft rear bearing is removed from the engine block.
    2.7. Remove the J 26941 from the balance shaft rear bearing.
  3. Discard the balance shaft rear bearing.

Installation Procedure

    Object Number: 340085 Size: SH

    Caution: Wear safety glasses in order to avoid eye damage.

  1. Use the J 38834 in order to install the balance shaft rear bearing.
    2. 1.1. Install the J 38834-3 onto the short threaded end of the J 38834-1.
    1.2. Install the J 38834 nut, the washer, and the bearing on the long threaded end of the J 38834-1.
    1.3. Install the J 38834-2 onto the J 38834-1 so that the smaller diameter of the J 38834-2 will be facing the front of the engine block.
    1.4. Install the J 38834-2 on the inside of the balance shaft front bearing bore.
    1.5. Lubricate the NEW balance shaft rear bearing with clean engine oil.
    1.6. Install the balance shaft rear bearing onto the J 38834-2.
    1.7. Align the balance shaft rear bearing for installation.
    1.8. Using a wrench secure the J 38834-1 into place.
    1.9. Rotate the J 38834 nut until the balance shaft rear bearing is properly and completely pushed into the balance shaft rear bearing bore.
  2. Remove the J 38834 .
  3. Install the balance shaft. Refer to Balance Shaft Replacement .