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Home >> Lincoln >> 1997 >> Mark VIII Base >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Suspension - Electronic Air >> Adjustments >> Upper Or Lower Ball Joint Checking

Upper Or Lower Ball Joint Checking

  1. Turn air suspension switch to OFF position. Raise vehicle and support under subframe with jacks. Attach dial indicator to measure lateral (sideways) movement between spindle and arm near front ball joint being checked (upper or lower).
  2. Grasp tire at top and bottom, and slowly move in and out. If reading on dial indicator exceeds .015" (.38 mm), replace ball joint.
NOTE: Upper ball joint is serviced only as part of upper control arm assembly.
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