Impreza F4-2.5L SOHC (2003)
12) Extract the companion flange using ST.
ST 399703600 PULLEY ASSY
13) Remove the oil seal using ST.
ST 398527700 PULLER ASSY
14) Fit a new oil seal using ST.
ST 498447120 INSTALLER
15) Install the companion flange.
NOTE: Use a plastic hammer to install companion flange.
16) Tighten the self-locking nut within the specified torque range so that the turning resistance of companion flange becomes the same as that before
replacing oil seal.
ST 498427200 FLANGE WRENCH
NOTE: Use a new self-locking nut.
Tightening torque: 181.4 Nm (18.50 kgf-m, 133.8 ft. lbs.)
17) Reassembling procedure hereafter is the reverse of the disassembling.
18) Fill the differential carrier with gear oil to the filler plug level.