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Ball joints in JBA UCA's


This is a discussion on Ball joints in JBA UCA's within the Lift Kit Discussion forums, part of the Jeep Liberty - KJ (02 to 07) category!
I fitted the OME kit from Jeep'n by Al in Oct 2010. 3 years and 8 months later, but only ...

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Old 12-04-2017, 05:01 PM   #1 (permalink)
 
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Default Ball joints in JBA UCA's

I fitted the OME kit from Jeep'n by Al in Oct 2010. 3 years and 8 months later, but only 28,400km (17,600 miles) I had to change them since the boots had perished.
The originals were Moog with black rubber boots.
I fitted Raybestos BJ's which have a blue boot which looked more durable.
After 19,800km (12,300miles) and 3 years and 5 months, the boots had split 3/4 of the way around and water had got inside. Both sides had a small amount of play.
This time I have fitted AC Delco, but I think they have come from the same Chinese manufacturer as the Raybestos, since they look identical, right down to the markings on the boots.

Are others seeing this short life span?
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Old 12-04-2017, 05:33 PM   #2 (permalink)
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No , most of mine went way longer Had over 90,000 on the 04s . PLUS now I only run the JBA rebuildable ball joints way better
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Old 12-04-2017, 07:32 PM   #3 (permalink)
 
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I probably get about 30k out of mine. I think I have the Moog ones. Next go around I'll probably get the JBA ones. Doesn't bother me much, it's a like a half hour to change them. Could be worse.
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Old 12-05-2017, 11:41 AM   #4 (permalink)
 
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I ran my old GENII JBA's with MOOG joints for 30,000+ miles with zero issues,no play at all,or need to replace.

I also bought them used with about 50k on them before hand so a total of over 80k on them and original ball joints.

Key is to grease them and keep a eye on the boots.The boots are not designed to seal the joint as the grease(old grease) has to have somewhere to go when you add new grease.The boots will not last as long as the joint if properly maintained.And as the BJ's are not actually for a KJ the boots will not fit correctly anyways thus you need to watch them.
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Old 12-05-2017, 01:24 PM   #5 (permalink)
 
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I think that's my issue...I probably threw out good joints when it was really the boot that was bad, but didn't know where to get just a boot and for $30, rather have a new joint if the old one got contaminated.
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Old 12-05-2017, 06:25 PM   #6 (permalink)
 
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RRO includes an extra boot with their arms. Looks like some kind of aftermarket polyurethane thing... and you 'double-boot' the Moog balljoint on install.

70,000km later they're still tight (greased regularly). Boots still there.
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Old 12-05-2017, 07:48 PM   #7 (permalink)
 
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The boots on the Moogs that came with the UCA just touched the bottom of the arms, but the Raybestos and AC Delco boots are bonded to the case of the ball joint.
The Moogs didn't have any play when I replaced them but the boots were in tatters, I'm sure it wouldn't have taken long for the water to get in and cause rust.
I normally grease them at every oil change.
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Old 12-06-2017, 09:57 PM   #8 (permalink)
 
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This is the kind of extra boot RRO supplies to put on the moog baljoints...

https://www.amazon.com/Energy-Suspen.../dp/B000CN7B5C
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