Subaru 2002 IMPREZA Service Manual page 2421

18) Using the ST1 and ST2, repair the cylinder's
clinched sections.
ST1 34099FA080 PUNCH
ST2 34099FA070 BASE
(1) Cylinder
19) If the cylinder edge is deformed in a convex
shape, repair using an oil stone.
STEERING GEARBOX [RHD MODEL]
S4M0412A
G4M0889
PS-59
POWER ASSISTED SYSTEM (POWER STEERING)
20) Remove the oil seal using ST and press from
plug.
ST 34199AE100 PLUG OIL SEAL REMOVER
CAUTION:
Do not apply force on the plug edge surface.
Replace the plug circumference O-rings with
new ones.
(1) Oil seal
(2) O-ring
21) Set the ST on drawing dimension.
ST 34199AE120 GEARBOX OIL SEAL RE-
MOVER
(1) 70 mm (2.76 in)
B4M2604A
B4M2605A