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Thread: rear diff

  1. #1
    Iceash's Avatar
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    rear diff

    Hi all, If a rear diff is ill, what's the symptoms?

    When I'm travelling at 30mph I hear a slight wher wher sound from the rear when I pass 30 it goes.

    I'm almost sure it's tire road noise. But thought I'd check with you guys... It is running low profile 17's

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  3. #2
    "Stick a V8 in it!"

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    The diff seals can leak, might be an idea to check and if theres signs of leaking get the oil topped up.

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  4. #3
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    looked all dry when I was under there. So they don't make a sound then? lol

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    "Stick a V8 in it!"

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    Not unless they're worn or solidly mounted. My avant has solid diff and subframe mounts and it whines a fair amount.

    I'd ignore it, and see if it gets worse.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
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  6. #5
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    Quote Originally Posted by aragorn View Post
    Not unless they're worn or solidly mounted. My avant has solid diff and subframe mounts and it whines a fair amount.

    I'd ignore it, and see if it gets worse.
    lol, it' goes after 30mph sure it's tire noise. Solid diff? what's than then?!?

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    Could also be the rear wheel bearings
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  8. #7
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    good point :-)

 

 

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