How to build a square driveshaft (4x4)

Discussion in 'Engine/Drivetrain' started by MiniSimp, Aug 7, 2008.

  1. MiniSimp

    MiniSimp Member

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  2. ShoNuff

    ShoNuff Toyotaholic

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    it should also be noted that it is next to impossible to balance a square drive shaft.


    not to be used on the hwy




    but killer write up:D
     
  3. MiniSimp

    MiniSimp Member

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    I can't honestly say that, but it is in the warning on the top right hand side in the article.

    My rear shaft is so balanced that I drove back from the Rubicon 120 miles on it at 70mph with out any vibrations.
     
  4. ShoNuff

    ShoNuff Toyotaholic

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    wow really?



    ive been told more then a few times by the local shop (nwdrivelines) and a few guru's that its next to impossible.



    i never under stood why a round one would balance but a square wouldnt, they are both still a tube spinning really fast.


    might have to do a lil experimenting myself
     
  5. grounds671

    grounds671 Veteran

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    from what i been told at each corner on the square tube there is more metal to join them together, and how much used to weld shut is unknown. thats what makes it hard to balance, even by putting anything on it it is by far impossible to balance. vs a round and is even on the whole circumfrince. Also the way a square tube shaft when it spins it is throwing weight at each corner where it meets which makes it unstable.

    just what i been told.
     
  6. MiniSimp

    MiniSimp Member

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    Yeah, I'm not really sure how my rear shaft came out so good, but it's 100% balanced (I've only had it up to 75mph though)

    The one I made for the front is a different story though...it starts vibrating around 50mph
     

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