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KYUKYU3
 
Join Date: Jun 2017
Location: CA
Posts: 9
How do you know know if ball joint is bad

Hi,

I'm starting a suspension update and replacing what is needed in my 110k driver.

My control arms are out right now as I am replacing the bushings as they were cracked and caused noticable play in the control arm and a 55mph shimmy.

I tried to articulate the joint in circles and the action is smooth and firm. The are a bit stiff though as I have some new tie rods from elephant racing as a comparison which are smooth and firm too but are slightly easier to articulate.

How do I know if a ball joint is ok or needs replacements? Visually the boot on the old ball joints are good. Is it ok I can inject some grease in the joint to repack them?

Thanks!

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Last edited by samurai_k; 09-08-2017 at 06:05 AM..
Old 09-08-2017, 05:41 AM
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Join Date: Jul 2007
Location: Cape cod, Ma
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I usually check by rocking the tires back and forth to check for play. Since you have them off the car,
not sure how you could check? Here is a link, if you want to replace them.
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Old 09-09-2017, 02:37 AM
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Use the link in the post above, and search for ball joints.
Old 09-09-2017, 02:39 AM
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Easiest way is to jack up that corner of the car enough to get a long pry bar under the tire and lever up the tire to see if you can make it move or klunk. It is easier IMHO to check it on the car.
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Old 09-11-2017, 04:51 AM
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