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will 3.73.s lower my mpg by a lot?

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Old 11-15-2011, 12:59 AM
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will 3.73.s lower my mpg by a lot? DD from work to school. Auto only mod CAI. What will be the rpm range at 65 anyone know?
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Old 11-15-2011, 01:43 AM
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You may have your foot in it more and that will cause eco problems lol.
Try this http://api.viglink.com/api/click?for...13213429391511
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Old 11-15-2011, 08:34 AM
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I lost 2 mpg on my Impala when going from 3.08's to 3.73's. Worth every penny.
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Old 11-15-2011, 09:55 AM
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I think I lost a couple MPG when I went to 3.73 but I have so much more fun I don't even pay attention anymore.
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Old 11-15-2011, 09:57 AM
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Not enough to make it an issue.
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Old 11-16-2011, 01:34 AM
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Ok thanks you guys I guess il go for it. 3.73s it is. Now where should I buy my 3.73 gears. I want to avoid problems, so which 3.73s are most reliable and who sells them?
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Old 11-16-2011, 01:35 AM
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Originally Posted by jaycenk
You may have your foot in it more and that will cause eco problems lol.
Try this http://api.viglink.com/api/click?for...13213429391511
That website helped, thanks .
Last edited by 323steel36; 11-16-2011 at 02:59 PM.
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Old 11-16-2011, 06:49 AM
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Randys ring and pinion
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Old 11-16-2011, 02:47 PM
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As stated, you won't lose very much. I went from 4.10's to 3.23's and only picked up like 1.5 mpg's.
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Old 11-16-2011, 04:58 PM
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Originally Posted by za355tx
As stated, you won't lose very much. I went from 4.10's to 3.23's and only picked up like 1.5 mpg's.
With a manual you can actually gain mpg... with an auto going from 4.10 to 3.23's should be good for about 4-5 mpg.
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