1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 638Get this manual
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7 Prope ll er he ft may have plin thrust washer on fr onl bearin adaptorI VOTemovl! drive sha[t omp on nts [olloui ng i[ necesary LEFT HAN ROTAT ION
4 Remove" ring and thr us ri ng himsth