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  1. 10-26-2010 06:20 PM #1
    drjonez
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    4.2 6 Speed vs. 1.8T 6 Speed Differences

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    I've searched and come up empty-handed. A few questions:

    -Do the 4.2 and 1.8T 6 speed manual transmission share bellhousing bolt pattern? i.e. can I bolt a 4.2 6 speed up to my 1.8T
    -What are the differences in the gear ratios between the 4.2 and 1.8T 6 speed?

    TIA.
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  2. 10-26-2010 06:30 PM #2
    dougyfresh
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    gear ratios: http://www.audigeeks.com/forums/index.php?topic=386.0
    -Doug
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  3. 10-26-2010 06:32 PM #3
    drjonez
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    Thanks Doug!
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  4. 10-27-2010 07:29 AM #4
    drjonez
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    Anyone have input on the bolt pattern?

    What about the rear diff? Any difference between A4 and S4?
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  5. 10-27-2010 07:31 AM #5
    onceover
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    Quote Originally Posted by drjonez View Post
    Anyone have input on the bolt pattern?

    What about the rear diff? Any difference between A4 and S4?
    different gear ratios as well i would assume
    2011 Audi A4 Avant // quattro // Garnet Red
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  6. 10-27-2010 07:45 AM #6
    drjonez
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    Quote Originally Posted by onceover View Post
    different gear ratios as well i would assume
    I would think so too...but based on Doug's link both the 4.2 and the 1.8T have a 3.89 final drive....indicating the same diff.
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  7. 10-27-2010 07:58 AM #7
    FORCE_FED_DUB
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    Bolt pattern is the same, and as long as the rear diff final drive matches the transaxle final drive you should be golden.
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    -Cam
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  8. 10-27-2010 08:01 AM #8
    drjonez
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    Good info, thanks!
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