Removing Differential With Differential Lock

Information 

The halfshaft flange screw is coated with securing liquid. Always loosen and unscrew the screw only by hand. Loosening the screw using a commercially available electric screwdriver can cause the shaft bevel gear and threaded disc to move inwards out of the splines, rendering the screw ineffective. The differential lock would then have to be disassembled. Avoid this at all costs!

Fig 1: Locating Drive Shaft Flange Screws

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Remove left and right halfshaft flange.

   → 392519 REMOVING AND INSTALLING RIGHT HALFSHAFT FLANGE  - section on "Removing"

   → 392519 REMOVING AND INSTALLING LEFT HALFSHAFT FLANGE  - section on "Removing"

   Fig 2: Identifying Left Halfshaft Flange Screw

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Remove cover for differential with differential lock
   Fig 3: Identifying Differential Cover Mounting Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
3. Remove differential with differential lock.
4. Remove outer bearing rings.
   1. 4.1. Remove right outer bearing ring (small).

      Drive out using an aluminum mandrel or copper mandrel, alternating sides.

   2. 4.2. Remove left outer bearing ring (large).

      Heat cover for differential to approx. → Temperature: 120°C  and press out left outer bearing ring (large).