Diaphragm Oil Seal: Removal

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

DRAIN DIFFERENTIAL OIL
1. Using a 10 mm socket hexagon wrench, remove the rear differential drain plug and gasket, and drain the oil.
  
  Fig 1: Identifying Rear Differential Drain Plug And Gasket
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Install a new gasket to the rear differential drain plug.
3. Using a 10 mm socket hexagon wrench, install the rear differential drain plug and gasket.
REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY (See REMOVAL )
REMOVE ELECTROMAGNETIC COUPLING (See DISASSEMBLY )
REMOVE 4WD LINEAR SOLENOID (See REASSEMBLY )
REMOVE YOKE (See REASSEMBLY )
REMOVE TRANSMISSION COUPLING CONICAL SPRING WASHER (See REASSEMBLY )
REMOVE TRANSMISSION COUPLING SHIM (See REASSEMBLY )
REMOVE DIAPHRAGM OIL SEAL
1. Using SST, remove the oil seal from the rear differential carrier.
  SST 09308-10010
  
  Fig 2: Removing Diaphragm Oil Seal Using SST
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002