GM Corvette 1984-1996 Repair Guide

Upper Ball Joints

Imprimir

INSPECTION



See Figures 1 and 2

Anytime the ball joint is separated from the knuckle, it should be checked for looseness. If it is loose or can be twisted in the socket by hand, the ball joint must be replaced.

  1. Raise and safely support the vehicle with jackstands under the left and right lower control arms, as far outboard and nearest to the ball joint as possible.
  2.  
  3. Make sure the vehicle is stable and does not rock on the stands.
  4.  



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Fig. Fig. 1: The upper ball joint is mounted in the upper control arm



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Fig. Fig. 2: Upper and lower ball joint inspection

  1. Position a dial indicator against the wheel rim.
  2.  
  3. Grasp the front tire and push in on the bottom while pulling out at the top. Read the dial indicator, then reverse the push-pull procedure.
  4.  
  5. Horizontal deflection on the dial indicator must not exceed 0.125 in. (3.18mm).
  6.  
  7. The ball joint must be replaced if deflection is greater than indicated.
  8.  

REMOVAL & INSTALLATION



See Figures 3 and 4

  1. Raise and support the vehicle safely.
  2.  
  3. Safely support the lower control arm with a jackstand.
  4.  
  5. Remove the tire and wheel assemblies.
  6.  
  7. Using J-33436 or equivalent ball joint removal tool, separate the ball joint from the knuckle.
  8.  
  9. Remove the upper ball joint from the control arm as follows:
    1. Center punch the rivet.
    2.  
    3. Drill a pilot hole, then drill the rivet head.
    4.  
    5. Punch out the rivet.
    6.  

  10.  



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