GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

3.23 gears with boost?

Old Oct 4, 2012 | 10:35 PM
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Default 3.23 gears with boost?

OK truck is getting close to being finished ended up getting me a new 14 bolt rear, truth be told this truck will never see the track only rolls but thinking of ditching the 3.42s for a set of 3.23s what do you guys think? Do it or nay? setup again is a T76mm running a 3,000 precision industries converter so keep the 3.42s or do 3.23s? thanks; Cubic inches still unknown
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Old Oct 4, 2012 | 10:37 PM
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stick with the 42's just curious what are you hoping to gain with the 23'S
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Old Oct 4, 2012 | 11:09 PM
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i would go with 3.73s or even 4.11s on boost setups.
unless you want to do like 100mph rolls.
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Old Oct 4, 2012 | 11:26 PM
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3:23s here with boost and hauling *** 80roll burnouts lol
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Old Oct 4, 2012 | 11:43 PM
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i am running 73's and dont get out of 2nd until 90 mph
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Old Oct 4, 2012 | 11:54 PM
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If you have the power for it (and I meant north of 600 rwhp), do the 3.23's for sure! I just swapped to 3.42's from 3.73's and am still on the fence about whether or not I should of done the 3.23's as I really wanted to do.

I had 3.23's with an older STS set-up when I was making 400 rwhp and loved it. I was having some big problems on the low end with that set-up and swapped from 3.23's to 4.10's and it was a dumb decision. There were better ways to go about fixing my old set-up than swapping gears and I ended up regretting it.


Originally Posted by Crisdg.KHP
i would go with 3.73s or even 4.11s on boost setups.
unless you want to do like 100mph rolls.
On a whole I would have to disagree with that statement. Not all boost is created equal and even then I'd have to say the opposite is true of what your suggesting. High gears (numberically) and big converters are a must for N/A set-ups but not so on boosted applications.
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Old Oct 5, 2012 | 12:18 AM
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Originally Posted by PRO TOUR HOE
stick with the 42's just curious what are you hoping to gain with the 23'S
i do highway runs and love topend
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Old Oct 5, 2012 | 12:19 AM
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Originally Posted by Crisdg.KHP
i would go with 3.73s or even 4.11s on boost setups.
unless you want to do like 100mph rolls.
useally I do 60 rolls but aiming for topend
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Old Oct 5, 2012 | 12:20 AM
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Originally Posted by chevrolade
3:23s here with boost and hauling *** 80roll burnouts lol
lol thats badass so do you like them 23s?
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Old Oct 5, 2012 | 12:23 AM
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Originally Posted by Spoolin
If you have the power for it (and I meant north of 600 rwhp), do the 3.23's for sure! I just swapped to 3.42's from 3.73's and am still on the fence about whether or not I should of done the 3.23's as I really wanted to do.

I had 3.23's with an older STS set-up when I was making 400 rwhp and loved it. I was having some big problems on the low end with that set-up and swapped from 3.23's to 4.10's and it was a dumb decision. There were better ways to go about fixing my old set-up than swapping gears and I ended up regretting it.




On a whole I would have to disagree with that statement. Not all boost is created equal and even then I'd have to say the opposite is true of what your suggesting. High gears (numberically) and big converters are a must for N/A set-ups but not so on boosted applications.
YES its north of 600rwhp didnt want a bigger converter either so i ended up witha 2800 to 3000 PI
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