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Thread: Revolution 5.38 Pinion Blew Up

  1. #11
    Nothing but a Thing Snboarder113's Avatar
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    Revolution 5.38 Pinion Blew Up

    I wouldn’t go over 4.88 in a tj (4.56 on non rubicons with a d30 front) there’s just not enough metal, one mans opinion. Stock lockers I assume?
    Leave the t case alone.
    I wouldn’t worry about the clutch the ones they use can take a serious beating when necessary.


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  2. #12
    Nothing but a Thing highoctane's Avatar
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    TJs don’t have the thick cut gear set that the jk d44 axles have, and the front d44 in a TJ/LJ Rubicon is a low pinion which makes it inherently weaker in a front axle. I don’t have any experience with TJs at that level (mine was relatively stock when I had one back in 2004) but Imwith the TJ/LJ Alex specs I can see their reasoning with recommending 4.88s.


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  3. #13
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    what are people's thoughts on using the Jana K4 or the Nitro kit to make the TJs D40 as strong as the JKs?
    http://www.jantz4x4.com/jantz.php?p=detail&pro=jana_k4
    https://www.justdifferentials.com/PK...p/pkd44-bp.htm

    Write up:
    https://www.pirate4x4.com/forum/axle...l-housing.html

  4. #14
    Nothing but a Thing Snboarder113's Avatar
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    Quote Originally Posted by CO_love View Post
    what are people's thoughts on using the Jana K4 or the Nitro kit to make the TJs D40 as strong as the JKs?
    http://www.jantz4x4.com/jantz.php?p=detail&pro=jana_k4
    https://www.justdifferentials.com/PK...p/pkd44-bp.htm

    Write up:
    https://www.pirate4x4.com/forum/axle...l-housing.html
    I wouldn’t bother. The tj 44s are plenty strong, A 4.0l manual and 4.88s are enough for 37s. I know guys that wheel 37s on smaller gears and never have a problem. Your Jeep though, do what you want.


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