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Thread: QUAIFE ATB LSD

  1. 24th December 2005, 11:51 AM #1
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    QUAIFE ATB LSD

    Has anyone had any experience with a QUAIFE ATB LSD in a Range Rover Classic ?

    I have purchased two(2) of these differentials one for the front and one for the rear. Without actually installing the units I was hoping that before I proceeded that someone may suggest if they are a good idea at all.

    My main concern is setup in the front, will it be driveable.
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  2. 24th December 2005, 12:21 PM #2
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    From what I understand it improves the steering self centering. The Quaifes are supposed to be "the' torque biasing diffs, with better bias than the Detroit True Trac.

    They're also meant to be stunning with ETC.
    Cheers
    Slunnie


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  3. 24th December 2005, 02:42 PM #3
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    Mangie
    If you bought the 2 off of ebay be warned that they said in the listing that they were 19 spline. Your original axles are likely to be either 10 or 24 spline so unless you got the axles with the units you will have trouble fitting them.
    I researched them to purchase the ones on ebay and they check out very well, I just didnt want to import axles for my application from the UK
    I hope they serve you well
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  4. 24th December 2005, 07:07 PM #4
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    Yes they were sort of from eBay and you wouldn’t believe where they were delivered from either, not from our shores. Yes I did suspect the stated 19 spline which wasn’t a setup I was aware of. End the end I picked them up well under the eBay price and they were actually ten(10) spline which matches my setup.

    Thank you for all your input and Merry Christmas.
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  5. 26th December 2005, 06:59 AM #5
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    I've never driven a Quaiffe equipped diff, but they are used in a lot of front wheel drive high performance cars, including OE fitment in the last Ford Cosworth whatever in the UK in the last couple of years.
    They are very similar in design to the original Gleason (now Zexel) Torsen worm drive, torque biasing diff.

    I'm guessing it will be quite benign on the bitumen and in the wet fitted to the front.
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  6. 26th December 2005, 02:01 PM #6
    uninformed
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    as far as quality goes these are meant to be very good.

    i would advise in getting some maxi-drive 10 spline axles to go with, as the stock shafts are not so good
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  7. 26th December 2005, 03:52 PM #7
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    LSD front and rear? Man that would be sweet! Let us know how it performs in the mud...
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  8. 26th December 2005, 05:03 PM #8
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    QUAIFE are a really good company but their stuff is very very expensive . But you only get what you pay for
    The do alot of suff for the car racing boys (ford manly)
    I have never run their stuff but my brother has one of their diffs in the back of his freelander and he has given that some real crap
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  9. 4th March 2006, 11:53 PM #9
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    Rear Fitted

    Well I have fitted the rear ATB differential with not as expected results.

    To maximise the performance of the Quaife ATB differential the vehicle needs to keep both driving wheels in contact with the ground at all times as the optimum set up is to keep both driven wheels on the ground with this type of diff'.

    I guess in summary rather than one(1) wheel driving when the tyres are down two(2) drive until one(1) is off the ground and you are running a standard diff. Not quite an LSD..

    Bit of a bummer but it is definitely well made and smother then the stock.
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  10. 5th March 2006, 08:04 AM #10
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    <div class='quotetop'>QUOTE</div><div class='quotemain'>To maximise the performance of the Quaife ATB differential the vehicle needs to keep both driving wheels in contact with the ground at all times as the optimum set up is to keep both driven wheels on the ground with this type of diff'.

    I guess in summary rather than one(1) wheel driving when the tyres are down two(2) drive until one(1) is off the ground and you are running a standard diff. Not quite an LSD.. [/b][/quote]

    sorry if this sounds a bit harsh, but what were you expecting ??
    they aren't ARB's or Maxi's !!

    As for not quite an LSD, no, they are a torque biasing diff, and FWIW, neither a clutch pack nor cam and pawl style LSD work if one wheel is off the deck, either. If you want traction with one wheel off the ground you need a locker, or install Haultech's ETC with your Quaife ATB's.

    What you can do is alter your driving style and try some very light left foot braking when a wheel is off the ground. This provides just enough friction on the unloaded wheel for the centre to bias the torque back across to the wheel on the ground. This will keep you going forward.
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