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Thread: Have you guys ever seen a ball joint failure like this?

  1. #11
    Club Member Siegel1719's Avatar
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    Quote Originally Posted by Razmiblackz28 View Post
    First, glad to see you stopped safely and did not end up in an accident.
    Possible cause: looks like the ball joint stud was not inserted fully into the knuckle, if it was the bolt shank would have held it into the knuckle. The ball joint stud was only inserted to the bolt.
    My thoughts exactly. Absolutely no markings on the ball joint stud where it should have came in contact with the retaining bolt. I think torquing the bolt held it in place until a good bump dislodged the ball joint from the lower control arm.

    Also Moogs warranty likely states they are not responsible for any remedy other then a replacement part.
    Last edited by Siegel1719; 11-04-2018 at 08:46 PM.

  2. #12
    Club Member 4Gas$'s Avatar
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    Thank you so much guys for all the help & input!

  3. #13
    Club Member 4Gas$'s Avatar
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    Looking like install error, but Moog is far from perfect...


    c66ed1b9-202f-4c5e-9002-699cc54fd2ac-original.jpg

  4. #14

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    I have seen improper hardware in the MOOG boxes. That bolt "may" be too small in diameter to retain the ball joint stud. If the bolt fits snugly into the hole then the issue was installation error. Ball joint stud was not fully seated into the knuckle prior to bolt installation.

  5. #15
    Club Member dave89iroc's Avatar
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    stud not fully inserted or improper bolt was supplied, see if the bolt is loose in the hole
    ASE Master Certified Technician

  6. #16
    Club Member 4Gas$'s Avatar
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    Auto shop just called and reported problem / damage.

    The upper knuckle housing was worn, oblong. Not
    installer error, not faulty ball joint. As a matter of
    fact, they think they'll be able to reuse the ball joint
    and half shaft, it did destroy a sway link.

    So a used upper housing, new sway link, reassemble
    everything, front end alignment and then replace the
    tire and I'm back in business!

    Just one of those things. Could have turned out so
    much worse, just very grateful my son was ok, after
    all, that was the only important thing.

  7. #17
    Club Member Golden's Avatar
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    Glad your son is ok! That is NOT a stretch of highway that I’d want mechanical problems on. He did a fine job getting that thing stopped safely.

    I’d have a talk with him, there may be some adrenaline and emotion he has suppressed from that. I’m sure it was stressful.
    1999 Z28. A4. Magnaflow catback and a lid. 60k miles.

  8. #18
    Club Member 4Gas$'s Avatar
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    Quote Originally Posted by Golden View Post
    Glad your son is ok! That is NOT a stretch of highway that I’d want mechanical problems on. He did a fine job getting that thing stopped safely.

    I’d have a talk with him, there may be some adrenaline and emotion he has suppressed from that. I’m sure it was stressful.


    For the average person, without a doubt. This son is the most calm, low-key dude
    you'll ever meet. He knew how serious it was, but never lost his composure!

    Me on the other hand, during my morning prayers, I'm still thanking God for his
    safety.

  9. #19
    Forum Member Detroit Gearbox's Avatar
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    Ball joint did not fail.
    Odd the joint included a new bolt.... they are normally shouldered.
    My guess is if you reinstall it into the knuckle the bolt will tighten up a lot.

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