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373 gears on a4 and gas mileage

This is a discussion on 373 gears on a4 and gas mileage within the Drivetrain forums, part of the LSx Technical Help Section category; Originally Posted by tatertot91 I love my 3.73s on the street but hate looking at those rpms when i hit ...

  1. #21
    Member AKA Speedy's Avatar
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    Quote Originally Posted by tatertot91 View Post
    I love my 3.73s on the street but hate looking at those rpms when i hit the highway and i'm barely on the highway. I would go 3.42s if i was on the highway more.
    YES! 3.42's are about perfect for an A4 if you're still wanting top end speed and gas mileage. Trust me... you'll know the difference going up .69 on the gear ratio.

  2. #22
    Junior Member wicked87svo's Avatar
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    mine has 342 gears and they work fine i have decent milage and they pull hard on highway for having an a4

  3. #23
    Member CJREX's Avatar
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    Would 3.42s be worth the hassle going from 3.23s?

    Or so minor a change as to be $$$ wasted?

    My instinct says the latter

  4. #24
    Senior Member tatertot91's Avatar
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    Quote Originally Posted by CJREX View Post
    Would 3.42s be worth the hassle going from 3.23s?

    Or so minor a change as to be $$$ wasted?

    My instinct says the latter
    If you wanna feel the difference go 3.73s

  5. #25
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    3.23s' to 3.42s' is a 6% change,a waste spending money on.
    the only way it would be worth it is if the 3.23s' broke and you already had a set of 3.42s'.

  6. #26
    Senior Member Zboner's Avatar
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    Dude in my last Z that I had i went to 3.73's, you cant even really tell much of a difference in mileage go for it man.

  7. #27
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    Agree. The 3.73's really feel nice and I am not noticing a huge difference in highway rpm. I have never checked our mileage -- when it gets down to 1/4 tank, I fill it.

  8. #28
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    I went from 2.73 to 3.42 and like it, I do a mix of city and hwy driving and have been very happy with the 3.42s.

  9. #29
    Member natews6's Avatar
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    I would take 3.73's over 3.42's, but its your own preference. I went from 2.73s to 3.42s in my old Z28 and I disappointed in the outcome with all the work it took for the gear swap.

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