Mp-T Model

Hit the edges of the rear drive shaft lightly with a plastic hammer, and take out the transfer clutch.
NOTE: Be careful not to damage the oil seal of the extension case.

Fig 1: Removing Transfer Clutch
Courtesy of SUBARU OF AMERICA, INC.
Remove the transfer clutch pipe while being careful not to deform the pipe.

Fig 2: Identifying Transfer Clutch Pipe
Courtesy of SUBARU OF AMERICA, INC.
Remove the dust cover from extension case.
Remove the oil seal from the extension case.