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3.23 or 3.42?

This is a discussion on 3.23 or 3.42? within the Drivetrain forums, part of the LSx Technical Help Section category; Did you already do the stall? You could go higher on the stall and go with 3.23's and have the ...

  1. #21
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
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    Did you already do the stall?
    You could go higher on the stall and go with 3.23's and have the best of both worlds.

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  2. #22
    LSX whore allbaugh_04's Avatar
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    Quote Originally Posted by ZForce1 View Post
    I am in the process of changing from 2.73's to 3.42's. Can't wait to see how it drives. Does not see the track much at all, had to give at least a passing nod to fuel economy. For what the car is used for I think I chose the right gear.
    Wanna PM me with what gears you went with?

  3. #23
    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by redbird555 View Post
    3.37's are a bit much on the hwy even if they dont decrease mpg which is bs seeing as the motor is spinning more rpms so it obviously consumes more fuel...
    Ya I read that all the time about M6s w/4:10s from lots of guys who've never actually tried them. The difference was negligable.

  4. #24
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    Quote Originally Posted by INMY01TA View Post
    Have you tried them? I have 4:10s (= to 3:73s in A4) in my M6 and dd it for years, my milaege did not go down even one whole mpg. Old wives tale that it absolutely kills mpgs in my experience.

    No problems with wheelspin either.
    M6 and A4 are completely different animals.

    I can see the 4:10's being good in a M6 as it will make the .50 6th gear useable under 80mph.

    I have a friend with 4.10's in his A4, he gets like 16mpg highway with it.

  5. #25
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    Quote Originally Posted by redbird555 View Post
    3.37's are a bit much on the hwy even if they dont decrease mpg which is bs seeing as the motor is spinning more rpms so it obviously consumes more fuel... even if it didnt the motor would still be at 3k at 80 which would be highly annoying to drive with imo.
    Yup! That's the one thing I like about my 2.73's...I like cruising at 70 only turning 1800 rpm or so.

    Mayb if you never see the highway 3.73's would be fun, but I'm sure I'd hate them in my car...I drive WAY too much highway.

  6. #26
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    I didn't think those ever came from the factory with 2.73?

  7. #27
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    Quote Originally Posted by jacksonshred01 View Post
    I didn't think those ever came from the factory with 2.73?
    Yeah, that's the base gearing on the A4 cars. 3.23 was the optional "performance" gear, and was standard on the A4 SS and WS6.

  8. #28
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    I went from a 2.73 to a 3.42 to a 3.70 gear (9'').
    My car is just a fun street car and it see`s the highway (I-83) on a regular basis.

    My opinion for what it`s worth, would be to go to a 3.73 gear, you will love the performance gain from it, and your gas milage will not suffer that much.

    The 3.73 gear is the best choice for an auto and from what I hear, the 4.10 is the gear of choice for the manual cars. The difference between the 3.42 gear and the 3.73 is small, so you should think about doing it once and be done with it. If you already changed the gears to a 3.42 set, don`t worry about it, enjoy the car and start saving for a new rear.

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