Drive Pinion Shaft Assembly: Disassembly

Lift the crimped part of the locknut, and then remove the lock nut while holding the rear spline part of the drive pinion shaft using ST1 and ST2. Pull out the drive pinion collar.
ST1 498937110 HOLDER

ST2 499787700 WRENCH

ST3 499787500 ADAPTER

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

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

Fig 3: Separating Front Roller Bearing From Drive Pinion Shaft

Courtesy of SUBARU OF AMERICA, INC.