GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 39637 Wiper Arm Puller

Removal Procedure


    Object Number: 1655545  Size: SH
  1. Turn the ignition ON.
  2. Turn the wiper switch to DELAY.
  3. Turn the ignition OFF when the wiper arms are paused at the bottom of the wipe pattern.
  4. Remove the wiper arm nut cover (1).
  5. Remove the wiper arm nut (2).

  6. Object Number: 871365  Size: SH
  7. Using J 39637 , remove the wiper arm from the wiper pivot shaft.

Installation Procedure


    Object Number: 872389  Size: SH
  1. Install the wiper arms onto the wiper transmission pivot shaft.
  2. Align the wiper blades ends to the alignment dots in the lower windshield blackout.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1655545  Size: SH
  4. Install the wiper arm nut (2) and hold the wiper arm blades to the dots in the windshield blackout while tightening the nut.
  5. Tighten
    Tighten the nut to 25 N·m (18 lb ft).

  6. Install the wiper arm nut cover (1).
  7. Operate the windshield wipers and inspect for proper operation and alignment.