TOPIC: 1963 Mercury 65HP 4 Cylinder Lower Unit Question

I'm inquiring as to which, if any, lower units will interchange with a 1963 4 cylinder 65HP motor. The lower unit was not winterized and the frozen "milk shake" pushed the bearing out of the case. The case is cracked as well.

Model number on tag is #1568900

Thank You - Mike

Correction, model # 1569000

up to 64 . not 65 and later
inlin3 6's will fit dont know about the gear ratio.

I happen to have a couple that I could let go of

Thank You and I'll keep the offers to buy a donor under consideration