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Thread: 1970 Mercury 80hp Short Shaft Gear Ratio

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    Rick Cole bajarick's Avatar
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    Default 1970 Mercury 80hp Short Shaft Gear Ratio

    Does anyone know what gear ratio these motors came with from the factory?

    The engine serial code is 2881276.

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    Rick Cole bajarick's Avatar
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    Stock gear ratio is 2.3:1.

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    How we build changes with time - the fact that we build is more important.

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