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Silly Diff Stud Question

Discussion in 'PA- Keystone Cruisers' started by caz, Sep 2, 2017.

  1. caz

    caz Keystone Cruisers SILVER Star

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    I tore my Tacoma E-locker rear axle apart today. When I took out the bolts for the diff all of the studs came out too. Not a big deal, and I am sure I can just re-use them without an issue, but it got me thinking...

    A few vendors sell a "stud eliminator kit" which is simply a pan head bolt that screws in from the inside and a nut that goes on the outside.

    [​IMG]

    Why don't they just use bolts? Am I missing something? Seems like I could find a bolt the correct thread and length and just screw it in from the OUTSIDE.

    Inquiring minds want to know!
     
  2. brian

    brian SILVER Star

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    studs keep the third hung vs trying to lift it and get a bolt started.
     
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  3. caz

    caz Keystone Cruisers SILVER Star

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    So basically, I can reuse two studs and put bolts in the rest?
     
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  4. stock

    stock SILVER Star

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    Yup. Sometimes there are pins that help with alignment and also hold the weight while you put in the bolts. Different ways to skin a cat.
     
  5. jamarquardt22

    jamarquardt22

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    I can't think of a reason not to. But you may wish to use a Allen head bolt for the bottom 2 since they will hit rocks. Now would be a good time to weld in the drain plug since your bolts will effectively do the same thing.
     
  6. caz

    caz Keystone Cruisers SILVER Star

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    Good thoughts!
     
  7. YotaFun

    YotaFun

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    From my experience, after doing a few e-locker retrofits, the threads in the housing could strip out, this way with the bolt screwed through the inside with some loctite and then sliding the axle over and using a nut with lock washer in place, some piece of mind.

    I have been meaning to go in and do this modification since my bottom studs have pulled out a little bit and I now have a leak...
     
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  8. Stairgod

    Stairgod

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    Studs are typically used in high stress scenarios and actually have less chance of stripping out the threads in the housing than if you were using bolts. I have rebuilt motors and replaced the head bolts with studs when more clamping force was required. The bolts threading in from the back essentially do the same thing without the possibility of the stud coming out when you remove the nuts. Necessary mod? No. Beneficial? Depends. Certainly won't be any weaker then the stock set up.
     
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