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Thread: 85 250sx driveshaft u joint noise?

  1. #1
    Join Date
    Mar 2010
    Location
    Pacific NW
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    4,255

    85 250sx driveshaft u joint noise?

    Trusted friend swears the front u joint is making noise,
    but
    especially on left turns? nothing when turning right, however.
    like a bolt coming loose.

    wonder if they even Have bolts holding them or why a u joint would make noise on turns?
    all they do is move up and down slightly, right?

    also states that the swing arm bushings are not sloppy., wheelhubs, splines and
    etc are all tight.

    It's coming over tomorrow.

    What should I be ready for?

    kinda came on over the course of 1/2 hr ride.

    whats the worst to look out for changing u joints

    thanks

  2. #2
    Join Date
    Feb 2010
    Location
    newfane ny
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    1,277
    you will get a simular noise if the diff becomes loose from the swingarm where it bolts to the shaft housing,

  3. #3
    Join Date
    Jan 2010
    Location
    Beaver Falls, PA
    --
    2,666
    My left bearing wasn't fully seated and the u-joint was smacking the housing... try snugging up the pivot bolt... mine make a loud "snap" when it fully seated and the noise was gone.

  4. #4
    Join Date
    Mar 2010
    Location
    Pacific NW
    --
    4,255
    Thanks everyone.

    What you say makes perfect sense, and certainly more sense than a u joint going bad.

    I'll confirm what we find as soon as it gets here.

    Happy trails

  5. #5
    Join Date
    Sep 2006
    Location
    Northwest Indiana
    --
    1,893
    If i remember correctly, those u-joints are non replaceable too. You need a BIG allen to tighten the pivot area up.

  6. #6
    Join Date
    Jan 2010
    Location
    Beaver Falls, PA
    --
    2,666
    Quote Originally Posted by tecat-z View Post
    If i remember correctly, those u-joints are non replaceable too. You need a BIG allen to tighten the pivot area up.
    17mm nuts(I used 350x lug nuts) double nutted on a bolt works great

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