GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 39232 Wiper Transmission Separator


    Object Number: 306506  Size: SH
  1. Remove the wiper arm and blade assemblies. Refer to Windshield Wiper Arm Replacement .
  2. Remove the air inlet screen. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  3. Remove the transmission drive link socket from the wiper motor crank arm using the J 39232 .

  4. Object Number: 306502  Size: SH

    Important: Rotate the transmission as necessary to extract from the plenum.

  5. Remove six screws and the transmission from the vehicle.

Installation Procedure

Tools Required

J 39529 Wiper Transmission Installer


    Object Number: 306502  Size: SH
  1. Install the transmission on the vehicle with six screws.
  2. Tighten
    Tighten the screws to 8 N·m (70 lb in).


    Object Number: 306515  Size: SH
  3. Install the transmission drive link socket to the wiper motor crank arm ball using the J 39529 . Ensure that the socket is fully seated on the ball.
  4. Install the air inlet screen. Refer to Air Inlet Grille Panel Replacement in Body Front End.
  5. Install the wiper arm and blade assemblies. Refer to Windshield Wiper Arm Replacement .