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Thread: E-diff retro fitting.

  1. #1
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    E-diff retro fitting.

    This makes very interesting reading.....

    Disco3Club The Discovery 3 and 4 Owners Club • View topic - Locking Diff retro-fit

    download the PDF for full info....

  2. #2
    RichardK is offline ChatterBox Silver Subscriber
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    Yes it does, Spooky did that some time ago, I had a link when he posted it on the D3 site, a lot of intricate electrical work but a way to add the diff lock if you want to. was well thought out.
    RichardK

    Series IV Matrix Offroad Camper following our Discovery 3 with E Diff, BAS Remap, Mitch Hitch, Uniden UHF, Codan NGT HF, Masten TPMS, Proquip Compressor Guard, ARB Winch Bar, Milemarker Hydraulic Winch, 4x4 Intelligence Rear Wheel Carrier, VMS GPS with Rear Camera,

  3. #3
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    Yep, a lot of work.....I think I'll just order the e-diff on my D4 - a lot easier....

  4. #4
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    Or just fit a potentiometer (or switch) and make it a manual locker.

  5. #5
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    I am intrigued - did you just say ...

    Quote Originally Posted by isuzurover View Post
    Or just fit a potentiometer (or switch) and make it a manual locker.
    Did you just say that one can install the "lump" on top of the rear differential and then run some wires to a switch and for good or bad, have a manually operated locking rear differential?

    If I misunderstood, I sure swallowed that one.

  6. #6
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    Quote Originally Posted by bbyer View Post
    Did you just say that one can install the "lump" on top of the rear differential and then run some wires to a switch and for good or bad, have a manually operated locking rear differential?

    If I misunderstood, I sure swallowed that one.
    Sort of - I imagine you would need to change the entire diff/internals from standard to the e-diff - but that is basically what I meant.

    It would be quick and easy to run completely seperate, manually controlled, wiring for the e-diff. You would just need to know the voltage needed to achieve a complete lock (which you could find using bench testing) - but presumably this would be 12V. Then buy a either a switch or suitable potentiometer to work it.

    The computer won't know that an e-diff is fitted, and won't be able to control it, but it you can. The traction control system will just think that both wheels have the same amount of traction when the diff is fully locked.

    Unlike the e-locker fitted to toyotas, the e-diff is not really a true locker, more an e-lsd.

  7. #7
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    Surely an aftermarket diff lock could be modified to fit in the diff housing. I guess it would be a matter of finding which one is the most suitable and having the skills and equipment to make it fit and work.

    Here is chance for some enterprising individual.

    Garry
    REMLR 243

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  8. #8
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    Quote Originally Posted by garrycol View Post
    Surely an aftermarket diff lock could be modified to fit in the diff housing. I guess it would be a matter of finding which one is the most suitable and having the skills and equipment to make it fit and work.

    Here is chance for some enterprising individual.

    Garry
    I posted this in a previous thread:

    Quote Originally Posted by DBongard(ARB R&D Engineer)
    G'day Ben,

    No immediate plans for Disco 3/4 in the pipeline.
    We have done the tear-down feasibility and LR made them very tough and and
    an expensive development for us.
    But ARB has always been a strong supporter of Land Rover, and no doubt at
    all you will see them available in the future.
    I think currently the cost of the Disco 3/4 is keeping the average guy away
    from wanting to be too rough with them.
    But when the sales numbers are there to begin thinking about paying off the
    development costs then it will all happen.
    ARB need to be sure there is quite a big market out there before they invest the R&D

    So it seems it is not easy. Maybe Ashcroft or Jacmac are a more likely option.

  9. #9
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    Quote Originally Posted by oldsalt View Post
    Yep, a lot of work.....I think I'll just order the e-diff on my D4 - a lot easier....
    What I did and only 7 weeks to go before she arrives But I can't think of too many places where I think the e-diff would have been a must have.

  10. #10
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    Given the integrated nature of the whole terrain response system I wonder what negative side affects you would achieve by tricking the trs into beliving that both back wheels are turning at the same speed? Thinking here activiation of the centre diff lock and perhaps something when the steering wheel is turned which would cause the system to expect the back wheels to turn at different speeds and thus triggering some sort of unwanted intervention.

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