Transmissions and Drivetrain Need help with your trans? Problems with your axle?

how much improvement from 3.42?

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Old Mar 14, 2008 | 01:27 PM
  #1  
stevenb's Avatar
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Joined: Mar 2007
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From: Michigan
Car: 87 camaro
Engine: 357 swap
Transmission: t5
Axle/Gears: 3.42
how much improvement from 3.42?

I got a 3.42 gear and am looking to buy a 10 bolt and put a 4.56 (possibly 4.10 if the 4.56 is too much)

How much time does it take off with the 4.10? What about 4.56?
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Old Mar 18, 2008 | 02:59 AM
  #2  
Darkshot's Avatar
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From: Sacramento
Car: 91 RS
Engine: 350 TBI
Transmission: WC T5
Axle/Gears: 3.42 Posi
Re: how much improvement from 3.42?

What does your powerband look like? ie, where do you shift at WOT?

I can almost guarantee 4.56 is way too much. 4.10 might even be too much. If you have a powerband that takes you to 6000RPM then 4.10 might be good.
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Old Mar 23, 2008 | 10:48 PM
  #3  
stevenb's Avatar
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Joined: Mar 2007
Posts: 270
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From: Michigan
Car: 87 camaro
Engine: 357 swap
Transmission: t5
Axle/Gears: 3.42
Re: how much improvement from 3.42?

Originally Posted by Darkshot
What does your powerband look like? ie, where do you shift at WOT?

I can almost guarantee 4.56 is way too much. 4.10 might even be too much. If you have a powerband that takes you to 6000RPM then 4.10 might be good.
I don't have a tach hooked up currently but I'm pretty sure with my cam I have a good poweband close to redline. WOT???
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Old Mar 24, 2008 | 09:27 AM
  #4  
89IrocZ350TPI's Avatar
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Car: ws6
Engine: ls1
Transmission: m6
Axle/Gears: 3.42
Re: how much improvement from 3.42?

Id go with something like 3.90.
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