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      02-22-2014, 12:58 PM   #65
lakylester
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Drives: 135i, A4
Join Date: Sep 2011
Location: nj

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Quote:
Originally Posted by stefan
Quote:
Originally Posted by Dmacc View Post
Diff?
Yes. Which is why you really only hear it when it's working hard.

I am a bit perplexed about the transmission. I was under the impression that it was not up for the abuse of a track day.
Are you sure it isn't the fp?

Common sense dictates it's the diff making the noise if it seems to be liner w speed. But wouldn't this car have a pretty powerful new fp for 24 hr ?
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