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Shimming Kraton center diff

Discussion in 'Kraton' started by arrmaracing, May 16, 2018 at 9:41 AM.

  1. arrmaracing

    arrmaracing Well-Known Member

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    Hi guys,

    Just shimmed my center diff and looked at TP center diff video. I noticed he didnt put extra the extra two shims on the spider gears and nor did he put shims on bearing shaft cup.

    I replaced the stock shims with the four mugen e0206 spider shims and two planetary shims for the other two gears. I also added two tekno shims on the bearing shaft cup like how TP done with the rear/front diff video.

    Is that okay or should I redo my diffs?

    Thanks in advance
     
    Paultro84 likes this.
  2. Mr.Duke

    Mr.Duke Well-Known Member

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    There should be a total of (6) of the smaller shims and (2) of the larger shims installed inside each diff when complete.
     
  3. arrmaracing

    arrmaracing Well-Known Member

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    thanks. i couldnt get much information on the center diff. Then I saw TP and he only put the larger shims behind the planetary gear and left the spider gears out.
     
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  4. Jerry-rigged

    Jerry-rigged Premium Member!
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    There are some good rules of thumbs, but realize each diff can be a bit different. Shim, assemble, and spin it. It should be smooth / slightly notchy. If is too notchy, you need to remove some shims. If you can feel slack / backlash, you need to add shims.
     
  5. arrmaracing

    arrmaracing Well-Known Member

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    Is it with the crown gear on when feeling the smoothness?
     
  6. Jerry-rigged

    Jerry-rigged Premium Member!
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    Yes, crown gear, gasket and all four screws to proper torque. I'll even add fluid (in the hopes I have it right... LOL) but I think most people will assemble dry, feel the mesh, then open it back up to adjust or add fluid. Doing it my way is messy, if I get it together and find it is too tight.

    Also, when I say "Spin it" I mean, spin one outdrive against the other, so the crown/case does not really rotate. You want to feel the action/mesh of the internal gears.
     
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  7. arrmaracing

    arrmaracing Well-Known Member

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    Ah okay. Well if thats the case i think it was fine. It was only hard to spin by hands when going the same direction. Ill try again later tonight.
     
  8. Paultro84

    Paultro84 Well-Known Member

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    What's the part number for the shims that go being the sun gear? If that's what you call it. Haha the shims you need 2 of.
     
  9. Mr.Duke

    Mr.Duke Well-Known Member

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    Its the larger shim in the shim kit from Mugen that you bought.

    IMG_6709.PNG

    I bought the same one and it's enough to do all three diffs with 4 of the smaller shims left over, if memory serves me correctly.
     
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  10. Paultro84

    Paultro84 Well-Known Member

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    Awesome. Thank you good sir.
     
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