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What kind of gains will I expect to see at the track by switching to 3.90 gears?

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Old Feb 11, 2004 | 03:54 PM
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Hemi Killer
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Question What kind of gains will I expect to see at the track by switching to 3.90 gears?
I was thinking .2-.3, what do ya'll think? Thanks.
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Old Feb 11, 2004 | 04:57 PM
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i think that sounds reasonable. i believe someone said they saw close to those gains w/ the swap before.
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Old Feb 11, 2004 | 05:31 PM
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I was told swapping from 3.42 to 3.73 would give -.2 -.3 reduction so I would think going to 3.90 maybe -.3 -.4 reduction. I can't wait until I put my gears in.
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Old Feb 11, 2004 | 08:04 PM
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Hemi Killer
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gmc5.3L hurry up and put those gears in and let us know what the outcome is!
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