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3.73 OR 3.91 Gears??

This is a discussion on 3.73 OR 3.91 Gears?? within the GTO forums, part of the Vehicle Specific category; OK 06 M6 GTO with all the basic bolt-on's. Wheels are 19" with 275/30/19 tires in rear. I want to ...

  1. #1
    Member tyxpx's Avatar
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    Talking 3.73 OR 3.91 Gears??

    OK
    06 M6 GTO with all the basic bolt-on's. Wheels are 19" with 275/30/19 tires in rear. I want to change out the gears next but cant decide on going with 3.73 or 3.91....Anyone's input would be appreciated! Thanks!

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    Senior Member Bottesini's Avatar
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    The norm for a M6 seems to be 4.10s.

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    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by Bottesini View Post
    The norm for a M6 seems to be 4.10s.
    Not for a Goat.

    Anyways if you plan on keeping the 19's then stay with the 3.73. With the 3.91's it will just make it spin worse.
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

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    Member Tide's Avatar
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    Quote Originally Posted by LS2Tuner View Post
    Not for a Goat.

    Anyways if you plan on keeping the 19's then stay with the 3.73. With the 3.91's it will just make it spin worse.
    Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiise from the dead....

    Thread necro.

    Anyway, was doing a search for R&P info and came across this post.

    What's the general consensus on this? I've been toying with going 4.10's (I never fear the gear), but was a bit hesitant due to the side effect of more wheel hop.

    It's one of those things I want to do, but don't need to do. Also, my goals have really changed. I don't want to just be able to make a straight line as fast as possible (i.e. drag strip), I want it to handle the curves along the way. So, in that respect, I'm probably best to leave the stock 3.55's in it.

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    Senior Member qwkgto's Avatar
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    Quote Originally Posted by Wade M View Post
    Riiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiise from the dead....

    Thread necro.

    Anyway, was doing a search for R&P info and came across this post.

    What's the general consensus on this? I've been toying with going 4.10's (I never fear the gear), but was a bit hesitant due to the side effect of more wheel hop.

    It's one of those things I want to do, but don't need to do. Also, my goals have really changed. I don't want to just be able to make a straight line as fast as possible (i.e. drag strip), I want it to handle the curves along the way. So, in that respect, I'm probably best to leave the stock 3.55's in it.
    Just to let you know the stock gear is 346 in the 04-06 GTO
    mods: custom built twins, built 408 w/l92 stock GM heads,GM matching intake,drag bags,frame ties,aluminum drive shaft, performabuilt 4l80e,Yank converter,ohios fastest and quickest 04-06 GTO 9.52 at 144mph. 1.50 60ft on stock rear end and shafts/suspension,on drag radials.

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