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Differential differences...

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Old Sep 6, 2007 | 04:35 PM
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From: 41-33 Cry it out Koko!!!
St. Jude Donor '08-'09-'10-'11
Default Differential differences...

Is the differential the same for automatics and manuals?
I was wondering if I could take a manual diff with 3.42 gears and change my base A4 diff that has 2.94's? I think thats what mine has....

Last edited by ZeusC6; Sep 6, 2007 at 04:40 PM.
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Old Sep 6, 2007 | 04:48 PM
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You probably have a 2005
I got a 2005 A4 that had a 2.73 and swap to a 3.42 from a C5. You may also use a C6 3.42 from a manual.
Just make sure your mechanic has all parts need it for swap and also make sure he knows what he is doing.

plus their are no 2.94 nor 3.24.

2.73, 3.15, 3.42,etc,etc,etc...
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Old Sep 6, 2007 | 05:04 PM
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ZeusC6
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Thanks TESTOSTERONE, I probably have the 2.73 like you said.
How do you like it, what difference did you see?
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Old Sep 6, 2007 | 05:45 PM
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HUGE IMPROVEMENT IN ACCELERATION!
SPECIALLY WHEN ITS TUNE!
You'll love when it shifts to 2 gear and 3rd also
I thought about 3.73 but, 3.42 are just perfect for street performance. If you are into 1/4 mile performance only then go higher 3.73, 3.90 or even 4.10's but the higher the differential the lower the top end speed and MPG.
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