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Need some gear help please

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Old Jun 18, 2009 | 02:59 PM
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C6errr's Avatar
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From: Lake Elsinore cali
Default Need some gear help please

Will a 05 a4 rear 3.15 diff. fit my 07 a6. can i swap it out.

THANKS
DS
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Old Jun 18, 2009 | 03:06 PM
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From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
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Originally Posted by C6errr
Will a 05 a4 rear 3.15 diff. fit my 07 a6. can i swap it out.

THANKS
DS
While it's possible to put a newer diff (2006 and up) in a 2005, I don't believe the opposite is true.

As for swapping it, I've done it so many times that I could probably do it blindfolded and it only takes me about 3 hours now.
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Old Jun 18, 2009 | 03:12 PM
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Old Jun 18, 2009 | 08:02 PM
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It is not backwards compatible. The 05's can put in a modded bracket but there is not way for the 06 and up to go back.
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