2001 Mercury Mariner 50-60HP Factory Service Manual, Page 508Get this manual
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BIGFOOT GEAR HOUSING
NOTE: Use thick 0.090 in(2.29mm) washers (12-855941) under fasteners if not previously installedWasher Thickness 0.090 in(2.29mm) 0.060 in(1.53mm) Fastener Torque 22 lb-ft (