Recent content by Rudder3

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    Mercury Lower Unit Compatability with 1984 60 HP Outboard

    I've got a 1984 60 HP Mercury 3 cylinder engine. I'm looking at a lower unit online with a casting number of 1643-9539. Anyone know if this will fit? The narrative states that the driveshaft has 11 splines and the propshaft 13 splines.
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