1. Lift-up the vehicle.
2. Remove the differential gear oil drain plug using TORX ® bit T70, and drain the differential gear oil completely.
3. Replace the gasket with a new part and tighten the differential gear oil drain plug using the TORX® bit T70.
Tightening torque:
44 N·m (4.5 kgf-m, 32.5 ft-lb) (Aluminum gasket)
70 N·m (7.1 kgf-m, 51.6 ft-lb) (Copper gasket)
4. Remove the front exhaust pipe. (Non-turbo model) 
5. Remove the center exhaust pipe. (Turbo model)
6. Separate the front drive shaft from the transmission.
7. Remove the differential side retainer oil seal.
NOTE:
• Be sure to replace the differential side retainer oil seal whenever the front drive shaft is removed from the transmission.
• Use the ST 398527700 puller assembly to remove the oil seal. If removing the oil seal with a flat tip screwdriver, be careful not to scratch the differential side retainer.
8. Using the ST, install the differential side retainer oil seal by lightly tapping with a plastic hammer.
| ST 18675AA000 | DIFFERENTIAL SIDE OIL SEAL INSTALLER |
NOTE:
Apply differential gear oil to the oil seal lips.
9. Install the front drive shaft.
| ST 28399SA010 | OIL SEAL PROTECTOR |
10. Install the front exhaust pipe. (Non-turbo model)
11. Install the center exhaust pipe. (Turbo model)
12. Lower the vehicle.
13. Add the transmission gear oil through the oil level gauge hole.