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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 916 (Front Suspension System) >> Repair Instructions >> Upper Ball Joint Replacement (RWD) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to FLOOR JACK CAUTION in Cautions and Notices.
  1. Raise and suitably support lower control arm with safety stands. Refer to LIFTING AND JACKING THE VEHICLE in General Information.
  2. Because the weight of the vehicle is used to relieve spring tension on the upper control arm, position the floor stands between the spring seats and the ball joints of the lower control arms.
  3. Remove the tire and wheel assembly. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
    NOTE: Support the caliper with a piece of wire to prevent damage to the brake line.
  4. Remove the brake caliper. Refer to BRAKE CALIPER -- FRONT SINGLE PISTON or BRAKE CALIPER -- FRONT DUAL PISTON in Disc Brakes.
  5. Remove the cotter pin.
  6. Remove wheel speed sensor electrical connector from upper control arm.
  7. Disconnect wheel speed sensor electrical connector.
  8. Remove the upper ball joint stud nut.
  9. Separate the ball joint from the steering knuckle using J 23742  .
  10. Apply pressure on the tool until the stud breaks loose.
  11. Remove the J 23742  .
  12. Pull the ball joint stud away from the steering knuckle.
    Fig 1: Separating Ball Joint From Steering Knuckle
    G01467633Courtesy of GENERAL MOTORS CORP.
  13. Remove the rivets from the upper ball joint.
  14. Use a 3.175 mm (1/8 in) drill in order to cut a 6.35 mm (1/4 in) deep hole in the center of each rivet.
    Fig 2: Cutting Hole In Center Of Rivet
    G01467634Courtesy of GENERAL MOTORS CORP.
  15. Drill away the rivet heads. Use a 12.7 mm (1/2 in) drill.
    Fig 3: Drilling Away Rivet Heads
    G01467635Courtesy of GENERAL MOTORS CORP.
  16. Punch the rivets out. Use a small pin punch.
    Fig 4: Punching Rivets Out
    G01467636Courtesy of GENERAL MOTORS CORP.
  17. Remove the upper ball joint.
    Fig 5: Upper Ball Joint
    G01467637Courtesy of GENERAL MOTORS CORP.
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