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What gear size do I need?

This is a discussion on What gear size do I need? within the Automatic Transmission forums, part of the Drivetrain category; I'm already crossing the line at about 118mph with my stock 3.23. I plan on upgrading my rear end to ...

  1. #1
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    What gear size do I need?

    I'm already crossing the line at about 118mph with my stock 3.23. I plan on upgrading my rear end to a moser 12bolt and I want gear size that will help my quarter mile. However, I've heard from some people that if I go to large with my choice it will shift into fourth before the end of the quarter thus hurting my et. I was thinking 3.55 or 3.73?

  2. #2
    member since may 2000 nhraformula's Avatar
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    black
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    3.73 is a great all around gear for street and strip
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  3. #3
    Slower Than a 3rd Gen juiced99ws6's Avatar
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    +1 i have 373

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    Member jmhvenom's Avatar
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    Definately get a 3.73

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    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
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    just like they all said. 3.73 ....4.10's are mostly for m6s or a a4 thats all strip. keep with the 3.73 and you will see a world of difference in your acceleration.

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    Just me Y2KPewterSS's Avatar
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    Another vote for 3:73s
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    Senior Member mrr23's Avatar
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    i've had both the 4.10 and, currently, 3.73. unless you are going to go with at least a 28" tall tire and/or spin the motor to 7200+, i suggest the 3.73. with the 4.10 gears on the bottle, i was having to shift into 4th about 60ft before the traps. with the 3.73, i am going through right at 6300 rpms in 3rd.

  8. #8
    Junior Member Robert_Ayala's Avatar
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    Do you find any issues when driving on the highway with 3.73 gears? I tend to do a lot of 80+mph driving. Would you still recommend the 3.73 gears?

  9. #9
    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by Robert_Ayala View Post
    Do you find any issues when driving on the highway with 3.73 gears? I tend to do a lot of 80+mph driving. Would you still recommend the 3.73 gears?
    no issues really, just throws up the rpm higher so a gear higher..and your top speed drops like 5-10 mph..

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