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Thread: Diff Ratio Question

  1. #1
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    Diff Ratio Question

    If you run 4.1 in the front and 4.11 in the rear (or visa versa), will it make enough of a difference to stuff the centre diff on the road?

  2. #2
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    I may be wrong Ash, but isn't the only differance between the 2 strength, the 4.11s being the stronger.

    Baz.
    Cheers Baz.

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  3. #3
    p38arover's Avatar
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    Is the ratio really 4.1:1 or has it been rounded down from 4.11?

    I've seen the 3.54:1 ratio referred to as 3.5:1

    Ron
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    1 is a Toyota 4.11 and the other a Nissan 4.10

    I am tossing up wether I change just the rear diff or both in the Rangie as I just bought a pair 80 series diffs with twin lockers. The back one will be going in for sure, but it is more work to do the front as well.

  5. #5
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    You are allowed 10% tyre size variation.
    So I think it wouldn't matter as I calculate it to 0.2%.
    But you would get a tiny bit more wind up if you had the diff locked on hard surfaces.
    Regards Philip A

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    try it and tell us how ya go!
    if it dosent work then i wont do it


    <div class='quotetop'>QUOTE</div><div class='quotemain'>just bought a pair 80 series diffs with twin lockers[/b][/quote]

    first chev with rover, then nissan with rover, now toyota with rover.
    give it another year and you'll be back at rover with rover.

    phil.

  7. #7
    VladTepes's Avatar
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    Just ask an older Freelander owner how they went with the fancy pants centre diff thingy they have, gioven the front and rear diff ratios were different (and quite different at that).




    The centre diff thingies kept breaking. Not to worry. They were only worth about $8,000-00 each :!: 8O
    It's not broken. It's "Carbon Neutral".


    gone


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  8. #8
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    Originally posted by discowhite
    try it and tell us how ya go!
    if it dosent work then i wont do it


    <div class='quotetop'>QUOTE</div><div class='quotemain'>just bought a pair 80 series diffs with twin lockers
    first chev with rover, then nissan with rover, now toyota with rover.
    give it another year and you'll be back at rover with rover.

    phil.[/b][/quote]

    The nissans will go in the rover with the chev, The toyota's will go in the rover with the isuzu :roll: :wink:

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