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Thread: 540i thrust arm replacement

  1. #1
    Join Date
    Mar 2008
    Posts
    8

    Default 540i thrust arm replacement

    I'm trying to replace the thrust arms on my dad e34 540i and everything went smooth until I tried to tighten up the bolt on the ball joint end. The ball joint kept spinning. Is there a trick to keep them from spinning to I can tighten it up. To me, it's such a stupid design from Lemforder thrust arms. On my e30, there's a slot on top of the balljoint for you to use the wrench and stop it from spinning. Please help.

  2. #2
    Join Date
    May 2004
    Location
    Sydney, Australia
    Posts
    2,699

    Default

    use a c clamp there.

  3. #3
    Join Date
    Feb 2004
    Posts
    4,892

    Default

    New thrust arm spinning at the ball joint? Sometime there is a slot where you can put a wrench on that ball joint shaft to keep it from spinning. Still, most new thrust arm ball joint should never move when you tighten it up.

  4. #4
    Join Date
    Mar 2007
    Location
    Liverpool UK
    Posts
    1,536

    Default

    Defective Balljoint... Get a new one.
    1995 XJR: 4.0L S/charged straight 6 Auto

    What... It's not broken??? I can still fix it

  5. #5
    Join Date
    Mar 2008
    Posts
    8

    Default

    Quote Originally Posted by BigKriss
    use a c clamp there.
    Thanks for the tip. I used a 5" C clamp and it worked beautifully.

    QN

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