1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 598Get this manual
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4 Remove prope ll er shaft geasmall ta pered raIler bearing and bearing daptor as fo ll ows: Remove prope ller shaft gear dri ve pin "'ith '8" pun h, drivin pin out from pp osite side of gear thru mal