Explorer 2WD V6-4.0L VIN K (2007)
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If relative movement is not felt or seen, the ball joint is OK. Do not install a new ball joint.
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If relative movement is found, continue with Step 8.
8. NOTE: In order to obtain an accurate measurement, the dial indicator should be aligned as close as possible with the vertical axis of the ball joint.
To measure ball joint deflection, attach a suitable dial indicator with a flexible arm between the upper control arm and the wheel knuckle or ball
joint stud.
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If the deflection meets the specification, no further action is required.
9. Measure the ball joint deflection while an assistant pushes up and then pulls down on the upper control arm, by hand.
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If the deflection exceeds the specification, a new ball joint must be installed.
