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Thread: Different dia spares

  1. 6th January 2009, 10:01 AM #1
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    roamer
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    Different dia spares

    HI, I was wondering if anyone knows of any problems I might have with tyre diameter of my spares ( wanglers 763mm ), being used with larger diameter(LTZ 799mm) on the car.
    Cheers Ken
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  2. 6th January 2009, 03:02 PM #2
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    You might find your traction control kicking in very early. Only way to know is to put em on and try.
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  3. 6th January 2009, 03:33 PM #3
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    I wouldnt be trying it. (especially in something as complex as a D3) It may well cause transmission wind up or worse.

    The larger tyre has a rolling diamater of 2510mm

    the smaller has a rolling diamater of 2397mm

    So in 1 KM the larger one will spin 398.4 times

    The smaller one will spin 417 times.

    Thats quite a big difference...
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  4. 6th January 2009, 03:40 PM #4
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    If you have air suspension you will log fault codes and possibly cause limp home mode to come on.
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  5. 6th January 2009, 07:14 PM #5
    CaverD3
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    I suppose it depends how far you drive with it on and whether it is on tar.
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  6. 7th January 2009, 12:48 PM #6
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    Don't risk it. As BigJon says, it can cause suspension problems (and all sorts of other strange faults that can have repairers scratching their heads).
    Scott
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