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Ball joints testing

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Old Nov 12, 2011 | 04:51 PM
  #1  
Pape's Avatar
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JK Freak
 
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From: QC, CA
Default Ball joints testing

Was testing my ball joints this afternoon with a pry bar and my driver side got more play than me passenger side, what is the maximum up and down play acceptable on front C ball joints ?

Also I was feeling a little knock while doing the up and down test on my driver side normal or not ?

Thanks

P.S before telling me to use the search feature give it a try your self
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Old Nov 12, 2011 | 04:54 PM
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Here is some info related to both questions:

Radial (side-to-side) movement in the upper ball joint should not exceed 0.060" (1.5mm).

Axial (up and down) movement in the lower ball joint should not exceed 0.050" (1.25mm).


A dial indicator is the best instrument to measure ball joint play.

Jack the front tire off the ground.
Place a jack stand under the axle next to the jack.
Lower to put some weight on the jack stand.
Place a long pry bar under the tire, from the side.
Have someone pry the tire up and down while you watch the lower ball joint for up and down play.
Axial (up and down) movement in the lower ball joint should not exceed 0.050"

Have someone grab the tire at top and bottom to wiggle the top in and out while you watch the upper joint for side play.
Radial (side-to-side) movement in the upper ball joint should not exceed 0.060"

Even if the upper joint checks good, change both if the lower checks bad.

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Old Nov 12, 2011 | 06:47 PM
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Thanks ronjenx, will need to reperform the test but from the play I got on the driver side I'm probably over...
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