Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 335Get this manual
Gear Housing Specifications (Standard Rotation) Special Tools Required for Disassembly and Reassembly Standard Rotation (Ratcheting and Non-Ratcheting)
Bellville Washer 12-54048
Pilot Washer 91-36571
Driver Cup 91-36577
Needle Bearing Driver 91-15755