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Unread 02-03-2010, 09:27 PM   #16
Ole Yeller
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Sorry. I did contribute to it.

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Unread 02-04-2010, 03:44 PM   #17
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Simply amazing post ronjenx. Again, thanks for putting this together, it certainly helped me.



I have a question: how far out of spec can bad ball joints put your camber?
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Unread 02-04-2010, 04:20 PM   #18
ronjenx
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Quote:
Originally Posted by DeepSky View Post
Simply amazing post ronjenx. Again, thanks for putting this together, it certainly helped me.



I have a question: how far out of spec can bad ball joints put your camber?
I believe you would replace them for other symptoms (noise, vibration, shimmy, outright breaking off, etc), long before they would cause camber, castor, or toe in, to go out of spec.

But, to answer your question: I don't know.
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Unread 02-04-2010, 04:56 PM   #19
Hellbound13
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My first set put the camber off by .3
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Unread 02-04-2010, 05:16 PM   #20
ronjenx
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Quote:
Originally Posted by Hellbound13 View Post
My first set put the camber off by .3
Do you recall what the measured play was?
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Unread 02-04-2010, 05:21 PM   #21
Hellbound13
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Originally Posted by ronjenx View Post
Do you recall what the measured play was?
No I just remember going for an alignment and the shop told me I needed new ball joints. I then did a pry bar test and they were shot.
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Unread 04-20-2010, 08:55 AM   #22
ricrac
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rebuildable ball joints !

Dynatrac makes rebuildable ball joints for the JK , downside is they cost big coin, about $580.00. But I guess if you're running a lift and big tire/ offset rims and are replacing oem joints every 10K miles or so the Dynatracs may be worth the money.
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Unread 06-05-2010, 04:30 PM   #23
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Here is a comparison between the OEM JK ball joints and Crown replacement ball joints:

(A review of the first post in this thread may be helpful.)

As you can see, the OEM JK lower ball joint has a larger ball, for more bearing surface.
The Crown's liner has a hole in the top, and grooves (grease groves?), just like the OEM joint.






The Crown upper ball joint is a slightly different design than the OEM joint.
It has a spring in the top that pushes on the white plastic spacer, which pushes on the pin.
The top cap on the crown is steel. I had to put it in a vise to hold it together because the spring has a high compression load.
The plastic liner and the housing bore have a 0.005" taper toward the bottom. Not nearly as much as the OEM joint has.

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Unread 06-05-2010, 05:58 PM   #24
JLC08JK
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So from this comparison the O.E.M. Ball joints appear to be preferred over the Crown replacements correct?
Or maybe the O.E.M. Lowers and the Crown Uppers!
P.S. Thank you for the great research
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Unread 06-05-2010, 08:19 PM   #25
ronjenx
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My opinion is both brands are inadequate for the JK.

Now that there are some Dynatrac ProSteer ball joints on a few JK's it will be interesting to see how they hold up.
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Unread 06-06-2010, 12:12 AM   #26
JLC08JK
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Hopefully the AfterMarket will be able to supply our demand sooner rather than later!!!
I've seen better steering joints on a "RadioFlyer" maybe they could be adapted.
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