Impreza GT F4-2.5L Turbo (2009)
Seals and Gaskets: Service and Repair
Rear Differential Side Oil Seal
REPLACEMENT
1) Remove the rear differential.
2) Remove the rear differential side oil seal using ST.
ST 398527700 PULLER ASSY
3) Using the ST, install the oil seal to the side retainer.
NOTE:
Apply differential gear oil to the oil seal lips.
ST 398437700 DRIFT
4) Install the rear differential.