Re: Mix lower unit gears and gearcase halves?

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December 2, 2016 at 9:44 pm #48418
olcah
Participant

    US Member

    Thank you Garry, Checking the 1957 Johnson parts list confirms the gear changes you identified. Looks like there was a lot of change to the gearbox in 1957. The 1957 parts list even includes adding a needle bearing for the drive shaft. That makes the 1955 and 1956 Big Twins somewhat unique.