Extension Case: Disassembly

WARNING: This page is about a different car, the 2011 Subaru Tribeca. However, it is still accessible from the selected car via links, so may be relevant.

Take out the transfer clutch and multi-plate clutch hub assembly by lightly tapping the end of rear drive shaft.
NOTE: Be careful not to damage the oil seal of the extension.
Remove the snap ring using the ST and press.
ST 18762AA000 COMPRESSOR SPECIAL TOOL

Fig 1: Identifying ST 18762AA000 Compressor Special Tool
Courtesy of SUBARU OF AMERICA, INC.
Supply compressed air to remove the clutch piston.

Fig 2: Applying Compressed Air To Clutch Piston
Courtesy of SUBARU OF AMERICA, INC.
Remove the dust cover from extension case.
Remove the oil seal from the extension case.