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 .
  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 .
  5. Install the wiper arm and blade assemblies. Refer to Windshield Wiper Arm Replacement .