2001 Mercury Mariner 50-60HP Factory Service Manual, Page 508Get this manual
BIGFOOT GEAR HOUSING
3Generously lubricate O-ring, bearing carrier, and gear housing mating surfaces with 2-4-C wTeflon4Install bearing carrier and propeller shaft into housing with the word "TOP" (located on flange) toward top of housing
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2-4-C wTeflon (92-850736A1)