ParkAvenue 1997-1999

Lower Ball Joints

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Inspection



Specific to:

Buick LeSabre 1986-1999

Buick Park Avenue 1996-1999

Oldsmobile 88 1992-1999

Oldsmobile Delta 88 1986-1988

Oldsmobile LSS 1996-1999

Pontiac Bonneville 1987-1999

  1. Raise and safely support the vehicle. Position a jackstand under the engine cradle, then lower the vehicle so the weight of the vehicle rests on the a jackstand and not the control arms.
  2.  
  3. Grasp the wheel at the top and the bottom and shake the wheel in and out.
  4.  
  5. If you see any movement at the ball joint or movement of the steering knuckle in relation the control arm, the ball joints are defective and should be replaced.
  6.  

Removal & Installation



Specific to:

Buick LeSabre 1986-1999

Buick Park Avenue 1996-1999

Oldsmobile 88 1992-1999

Oldsmobile Delta 88 1986-1988

Oldsmobile LSS 1996-1999

Pontiac Bonneville 1987-1999

Use only the proper tools for separating the ball joint from the steering knuckle. If you don't use the correct tools, you could damage the ball joint and seal.

  1. Raise and safely support the vehicle. Position a jackstand under the engine cradle and lower the vehicle so the weight of the vehicle rests on the jackstand and not the control arms.
  2.  
  3. Remove the tire and wheel assembly.
  4.  
  5. Remove and discard the cotter pin, then loosen the castellated nut from the ball stud.
  6.  



Click image to see an enlarged view

Fig. Remove the cotter pin, then loosen the ball stud's castellated nut

  1. Disconnect the ball joint from the steering knuckle, using tool J-36226, or equivalent suitable ball joint separator tool.
  2.  



Click image to see an enlarged view

Fig. Removing the ball joint from the knuckle using ball joint separator tool J-36226

  1. Loosen the stabilizer shaft link nut.
  2.  


WARNING
Be careful not to damage the halfshaft seals when drilling out the ball joint rivets.

  1. Drill out the three rivets retaining the ball joint, then remove the ball joint from the steering knuckle and the control arm.
  2.  



Click image to see an enlarged view

Fig. To replace an original ball joint, you must drill out the rivets

To install:

  1. Position the ball joint to the steering knuckle, aligning with the holes in the control arm.
  2.  
  3. Install the 3 ball joint bolts, facing down, and the nuts. Tighten the ball joint-to-control arm nuts to 50 ft. lbs. (68 Nm).
  4.  



Click image to see an enlarged view

Fig. Installation of a replacement ball joint

  1. Install the stabilizer shaft link nut and tighten to 13 ft. lbs. (17 Nm).
  2.  
  3. Install the ball joint slotted nut and tighten to 88 inch lbs. (2 Nm). Then, tighten the nut an additional 40° (2 flats on the nut) during which a torque of 41 ft. lbs. (55 Nm) must be achieved.
  4.  
  5. Install a new cotter pin. To align the slot, if necessary, tighten the nut up to one more flat. NEVER loosen the nut to install the pin.
  6.  
  7. Install the tire and wheel assembly.
  8.  
  9. Carefully lower the vehicle, then tighten the lug nuts to 20 ft. lbs. (136 Nm).
  10.  

Specific to:

Buick Park Avenue 1998-1999

The ball joint is an integral part of the lower control arm and if found to be defective the control arm should be replaced.

 
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