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Lower Ball Joint: Removal

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1990 GMC Suburban, 1990 GMC Pickup, 1990 GMC Cab & Chassis, 1990 Chevrolet Suburban, and 1990 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support vehicle. Support lower control arm with floor jack. Remove wheel and tire assembly. Remove lower ball joint stud cotter pin. Loosen ball joint stud nut 2 turns. DO NOT remove at this time.
  2. Remove brake caliper. Install Ball Joint Separator (J-23742 ) between ball joint studs. Extend bolt on ball joint separator to loosen ball stud. See Fig 1 .
    Fig 1: Separating Upper & Lower Ball Joints
    G30193Courtesy of GENERAL MOTORS CORP.
  3. Remove ball joint separator and ball joint stud nut. Lift steering knuckle assembly from lower ball joint stud. Support upper control arm with block of wood.
  4. Assemble "C" Clamp (J-951930 ), Removers (J-9519-7 ) and (J-9519-28 ) from Ball Joint Remover/Installer Set (J-9519-D ) on control arm and remove ball joint. See Figure .
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