Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 284Get this manual
DRIVE SHAFT ASSEMBLYCOMPONENT DISASSEMBLY NOTE: Complete the instructions in this section only if the assembly components have been found to be defective and are in need of repair or replacement
DRIVE SHAFT ASSEMBLYCOMPONENT REASSEMBLY NOTE: Complete the instructions in this section only if the assembly components have been disassembled and repaired or replaced1Assemble new tapered roller bearing to the drive shaft with the large .0 of the bearing facing the pinion gear end of the drive shaft2Press the tapered ro ller bearing onto the drive shaft using the universal puller plate and suitable mandrel(an old tapered roller bearing inner race)