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3.73 or 4.10 gears for m6

This is a discussion on 3.73 or 4.10 gears for m6 within the Drivetrain forums, part of the LSx Technical Help Section category; Well lets see i have 98 m6 ta. stage 3 clutch, tsp ms3 cam, headers and all the the other ...

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    Junior Member 1badassls1's Avatar
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    1998 Trans Am

    3.73 or 4.10 gears for m6

    Well lets see i have 98 m6 ta. stage 3 clutch, tsp ms3 cam, headers and all the the other bolt ons. What are gonna be the pros and cons of changing gears ... how much gas mileage am i goin to loose with 4.10s than if i went with 3.73. What will be my rpms at 70 mph with 4:10s and what not? Give me the scoop on this please.

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    Veteran Hi-Po's Avatar
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    MS3 cam? 4.11's at the least. The power has to be coming on a little later

    Depending on how high you wanna spin it through the 1/4 mile, 4.30's even. a 28" tall tire would help there. 4.11 is the lowest I would go with that cam, your cam is dying for some steep gearing.

    If your on the stock 10 bolt, I would look into getting a 12 bolt of 9". The steeper gear in that 10 bolt isnt going to help things in the strength category.

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    Junior Member 1badassls1's Avatar
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    hey man thanks for the info but this my dd for the most part, i just have a lil fun every now and again with it. i don't drag race so there is no need for rear end just yet!

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    Quote Originally Posted by 1badassls1 View Post
    hey man thanks for the info but this my dd for the most part, i just have a lil fun every now and again with it. i don't drag race so there is no need for rear end just yet!
    Even more imprtant to at least get 4.11's. The MS-series cams like a steep gear. Your going to loose a very MINIMAL amount of gas mileage. Do what ya like, but that MS3 has to be feeling slugish down low with your stock gearing.

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    Make real real sure Johns00Z28's Avatar
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    4:10s for the win

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    4:10 ++++

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    Internet Tough Guy Fury_786's Avatar
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    Sinister, SixGun
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    yep...4.10

    rpm @ speed depends on tire size. there are gear ratio calculators everywhere, use google. just remember 6th gear is .5 to 1 ratio.

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