1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 177Get this manual
Special Tools Part No91-46086A1 91-85716 91-34569A1 91-36569 91-37263 91-37323 91-56775 91-37241 91-83165M 91-31106 91-31108 91-37350 91-31229 11-24156 91-78473 91-58222A1 91-83155 91-12349A2 91-14308A1 91-14309A1 91-14310A1 91-14311A1 91-13945 91-13949 91-19660
6Remove gear housingDescription
Puller Jaws Puller Bolt Slide Hammer Mandrel Mandrel Driver Rod Drive Shaft Holding Tool Universal Puller Plate Bearing Puller Assembly Mandrel Oil Seal Driver Mandrel Threaded Rod Nut Backlash Indicator Tool (3 Cyl) Dial Indicator Dial Indicator Adaptor Kit Pinion Gear Locating Tool Bearing Race Tool Bearing Installation Tool Wear Sleeve Installation Tool Bearing Preload Tool Bearing Installation Tool Oil Seal Driver Backlash Indicator Tool (4 Cyl)
51552Bolts (or Locknuts) and WashersLocknut and Washer