2001 Mercury Mariner 50-60HP Factory Service Manual, Page 430Get this manual
NON-BIGFOOT GEAR HOUSING
Gear Housing Reassembly
Shift Shaft
1Apply Loctite 271 on O.Dof new sealInstall with seal lip up, as shown2Press seal into shift shaft bushing until seal bottomsUse suitable tool3Apply 2-4-C wTeflon on O-ring and I.Dof seal9595 7