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Old 01-02-2011, 12:01 PM
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Best highway gear

I have a 67 chevelle with an M22 4-speed and 12 bolt posi unit. Currently running a 390 gear. With the m22 and a 27 inch tire, any suggestions on a good highway gear with still having good low end torque. Any help would be greatly appreciated.
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Old 01-02-2011, 05:48 PM
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The gear you have now is a good one, I would not recommend using less than a 3.73 because of the ratio of the m22, it can be hard on the clutch.
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Old 01-02-2011, 07:37 PM
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The M21 and M22 are no good for a street car. The 2.20 first gear sucks. I would not recommend anything past a 3.55 for this transmission.
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