1992-2000 Mercury Mariner 105-225HP outboards Factory Service Manual, Page 591Get this manual

1992-2000 Mercury Mariner 105-225HP outboards Factory Service Manual, Page 591

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3 Inspect driveshaft needle bearing surface (area just above pinion gear splines) for pitting, grooves, scoring, uneven wear andor discoloration from overheatingReplace driveshaft and driveshaft needl