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3.42...what is the gains and losses of going to 3.73

This is a discussion on 3.42...what is the gains and losses of going to 3.73 within the Drivetrain forums, part of the LSx Technical Help Section category; I thinking of getting 3.73 gears....would i lose MPG?...

  1. #1
    Member LS1SSZ28's Avatar
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    3.42...what is the gains and losses of going to 3.73

    I thinking of getting 3.73 gears....would i lose MPG?

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    Senior Member ss~zoso~ss's Avatar
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    SS: NBM, tan top
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    you will gain acceleration

    you will loose top end

    you may or may not loose mpg, you'll have to drive different, aka be in higher gears to keep the rpm's lower

    like 5th gear at 35mph for example

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    Member LS1SSZ28's Avatar
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    is it worth it?

    like my car seems quick...and i know the gears will make it quicker...but is it WORTH it?

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    Visualize°Design°Create SSwt00SS's Avatar
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    not worth going from 3.42's to 3.73's...

    bumping up to either 3.90's or 4.10's yes...

    you will lose top end and MPG, but if you are worried about gas, then having an LS1 is not for you...
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    Just me Y2KPewterSS's Avatar
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    SSwt00SS already answered correctly, its a waste of time/money to swap 3:42s out for 3:73s.
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    Member LS1SSZ28's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    SSwt00SS already answered correctly, its a waste of time/money to swap 3:42s out for 3:73s.
    ok, well i heard 4.10s are TERRIBLE for daily driver...and i heard 3.73 are the best overall gear


    but it if pointless i will just keep my 3.42s

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    Member derbs's Avatar
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    3200 stall and 4:10 Im telling ya one bad bitch. lol

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    Senior Member slims00ls1z28's Avatar
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    2005 GTO M6 Black
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    I have 4.11's (9 inch) and a 3600 stall and it's not that bad unless I stand on it. When I step on it of course you can watch it drop but I have a 110 mile round trip from home to work and I can get there and back on 14$ in gas which at 3.19 a gallon is a tad over 4 gallons and in the low 20's. Haven't driven it yet with the cam until I get some other things sorted out. But I'l tell ya one thing it made one heck of a difference but then again I went from 2.73's.

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