Dana 44 Trak lok LSD plates all the same? Jeep, XJS etc?
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  1. #1
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    cresta pa is offline

    Dana 44 Trak lok LSD plates all the same? Jeep, XJS etc?

    As title thanks

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  3. #2
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    You've basically two different types of LSD mixed in there .....

    The Trak Lok is the poor man's version, single pin / two spider gear production /minimum cost piece ..... it relies in part for 'serrated' style friction plates because the internal locking of the diff isn't as variable as the :

    Power Lok ..... two pin / four spider 'ramp' type diff

    Although this is mostly known as a Salisbury 4HA part it was invented by a fella called Turner in the States in the fifties, and 'bought out' by Dana in the 44 sometime later that decade

    It's a way more technical design, the friction on the plates is partly a function of torque applied, prior to the Torsen & other gear diffs it was still possibly the most technical piece out there

    So the short answer to your question is no ...... you need to ID what you have first and find the parts from there

  4. #3
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    Oh yeah .... guess I should have put this in the above ......

    Pull the cover of the axle to expose the diff

    Trak Lok : Will look at first glance like an ordinary open diff, similar single casting but square shouldered, it'll have a single cross pin

    The friction plates are buried under the two spider gears, circular with a couple of ears

    Powr Lok : Will look nothing like an open diff, virtually enclosed, the centre section is two piece (nodular) held together by bolts

    John

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  6. #4
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    cresta pa is offline
    yaeh thanks for that, I do have the unit apart, it is a Dana 44 unit.

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    Sorry ..... but read again what I said, because I'm not sure you took it in by your reply ......

    Dana 44s HAVE BOTH Trac Loks & Powr Loks fitted ...... although the former is way more common

  8. #6
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    In the title from the start it states Trac Lok, Im only asking about Trac Lok, not PL, my problem is I can not get a plate kit for a XJS with a Dana 44 Trac lok, It looks like Jeep spec Trak Lok plates are the same, Im hopeing some one can confirm.
    Last edited by cresta pa; 21-11-2020 at 20:58.

  9. #7
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    Apologies .... I picked up on 'XJS' in the title .... Danas fitted but aren't common

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