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Changing Gears On A 6 Speed Auto

This is a discussion on Changing Gears On A 6 Speed Auto within the Corvette forums, part of the Vehicle Specific category; Anyone changed thier gears to a 3.42 or 3.73? How was it? Any differance?...

  1. #1
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    LE MANS BLUE
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    Changing Gears On A 6 Speed Auto

    Anyone changed thier gears to a 3.42 or 3.73? How was it? Any differance?

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    Member jimmy77611's Avatar
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    I went from a 3.42 to a 4.10 on a 90 model Camaro I had, and noticed only a small difference in torque gains. I don't think that 3.42 to 3.73 would be worth the expense in my opinion. I would go 4.10 if anything.

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    Right now I have 2.56 gears on a 6speed auto paddle shift.

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    Member jimmy77611's Avatar
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    You should see a good improvement if going to 3.42

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    Member jimmy77611's Avatar
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    I had an El Camino that had 2.56 and I went to 4.10, wow what a difference!

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    Cool. Gotta call vette doctors.

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    Depending on your stock final drive ratio and the one you're going too, it's one of the biggest SOTP gains you can get. When I had my Trans Am, I raced another car that had the same mods as me except he had 3.73 gears to my 3.23, and he walked me pretty hard.

    However, I believe doing "gears" in a Vette is significantly more expensive, as it's not just a differential with a ring and pinion gear, it's a transaxle, meaning the transmission and rear axle are one unit. I haven't looked into it much, but I think you have to change the whole gear unit out for some hefty $$$.

    Someone please tell me I'm wrong on this though, I'd love some taller gears (6th is useless until 70mph)

    Jon

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    Quote Originally Posted by Jon02EB View Post
    Depending on your stock final drive ratio and the one you're going too, it's one of the biggest SOTP gains you can get. When I had my Trans Am, I raced another car that had the same mods as me except he had 3.73 gears to my 3.23, and he walked me pretty hard.

    However, I believe doing "gears" in a Vette is significantly more expensive, as it's not just a differential with a ring and pinion gear, it's a transaxle, meaning the transmission and rear axle are one unit. I haven't looked into it much, but I think you have to change the whole gear unit out for some hefty $$$.

    Someone please tell me I'm wrong on this though, I'd love some taller gears (6th is useless until 70mph)

    Jon
    Smartest damn quote I have heard all year! It is money cause it's being done to my diff.

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    Member ramrod's Avatar
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    Quote Originally Posted by jimmy77611 View Post
    I had an El Camino that had 2.56 and I went to 4.10, wow what a difference!
    No offense bro, your solid axle cars are a totally diff on my diff! Cath the drift!



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