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Thread: new lift kit noise help...

  1. #1
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    Default new lift kit noise help...

    I have a 2008 JK and put a 4" pro comp lift on it. After a trip to Big Bear everytime I go over a larger bump it sounds like it is "bottoming out". I cant see anything wrong. Any ideas?

  2. #2
    Senior Member HillBillE's Avatar
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    New lift, first time out wheeling, funny sounds?

    I'd reccomend crawling under and checking all the new connections.

    Bolts will work loose, nut's may loosen up, after putting in new parts.

    With a ''bottoming out'' sound, I would check the control arms, track bar, and the shocks.

    For the front control arms and track bar, it helps if you have someone turn the wheel back and forth, while you watch each bushing for movement.

    Thay may seem tight, and not move by hand, and still be loose enough to move when driving over bumps.

    Thats all I can think of offhand. Course it is 0400 here (and no coffee yet!)


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  3. #3
    TJ Abuser radjeep's Avatar
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    i agree make sure you re-tighten all the bolts. Check your steering linkage and make sure even your trans mount bolts are tight.
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  4. #4
    Mountain Valley Customs
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    Pretty much all suspension companies tell you to recheck and retorque ALL fasteners after the first 100 miles after lift installation and then they recommend you check/retorque after every wheeling trip and with every oil change.

    Sounds to me like a shock mounting bolt is loose and the shock is moving around.
    Mountain Valley Customs www.mvcustoms.com 570.217.7284
    Specializing in 4x4s and custom fabrication


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