1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 872Get this manual
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HEAVY DUTY EXTENSION SHAFTSMERCRUISER II INSTALLATION SHAFT LENGTHS
EngIne Rubbe.r CC:JDling Steady RI!:s,t Searmg Support
EXTENSI ON LENGTH
2 FT3 T4 FT
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