Drive Pinion Shaft Assembly: Disassembly

Remove the crimped part of the lock nut, and then remove the lock nut while holding the rear spline part of the shaft using ST1 and ST2. Pull out the drive pinion collar.
ST1 18667AA010 HOLDER

ST2 499787700 WRENCH

ST3 499787500 ADAPTER

Fig 1: Identifying Lock Nut
Courtesy of SUBARU OF AMERICA, INC.
Remove the O-ring.
Separate the roller bearing and outer race from shaft using a press.

Fig 2: Identifying Roller Bearing And Outer Race
Courtesy of SUBARU OF AMERICA, INC.
Separate the front roller bearing from shaft using a press and ST.
ST 498517000 REPLACER

Fig 3: Identifying Front Roller Bearing
Courtesy of SUBARU OF AMERICA, INC.