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February 13, 2017 at 3:22 am
#52914
According to my copy of the 1976 Special Tool catalog it is an installer – bearing race for inner bearing #379593 on intermediate housing driveshaft of ball gear. For all 80 – 245hp stern drives. I believe that would be about 1964 to about 1976 give or take a few years. I think the hole was to hang it up on a wall board for organization.
Dan in TN