AUTOMATIC TRANSMISSION(4AT) > Front Differential Assembly
1. Using the ST, screw-in the differential side retainer until resistance is felt.
| ST 18630AA010 | WRENCH COMPL RETAINER |
NOTE:
• Screw-in the RH side slightly deeper than the LH side.
• ST WRENCH ASSY (499787000) can also be used.
2. Remove the oil pump housing.
3. Remove the liquid gasket from the mating surface completely.
4. Install the oil pump housing assembly to the converter case, and secure them by tightening the four bolts evenly.
NOTE:
Use an old gasket or aluminum washer to prevent damaging the mating surface of the housing.
Tightening torque:
41 N·m (4.2 kgf-m, 30.2 ft-lb)
5. Rotate the drive pinion a few times using ST1 and ST2.
| ST1 498937110 | HOLDER |
| ST2 499787700 | WRENCH |
6. Tighten the LH differential side retainer by rotating the shaft until resistance is felt. Then loosen the RH side differential side retainer. Tighten the LH differential side retainer until the pinion shaft no longer turns, and continue to loosen the RH side. This is the “zero” state.
|
(A) |
Differential side retainer |
7. After reaching the “zero” state, loosen the LH differential side retainer by 3 notches and secure it with the lock plate. Then after returning the RH differential side retainer, retighten until it stops. Rotate the drive pinion 2 or 3 times. Tighten the RH differential side retainer further by 1-3/4 notches. This sets the preload. Finally, secure the differential side retainer with the lock plate.
|
(A) |
Lock plate |
NOTE:
Turning the differential side retainer by one notch changes the backlash approx. 0.05 mm (0.0020 in).
8. Install the SUBARU genuine axle shaft to the left and right sides of the front differential.
| Part No. 38415AA000 | AXLE SHAFT |
9. Turn the drive pinion a few times with ST1 and check to see if the backlash is within the specified value, using ST2, ST3, ST4 and ST5.
| ST1 499787700 | WRENCH |
| ST2 498247001 | MAGNET BASE |
| ST3 498247100 | DIAL GAUGE |
| ST4 499787500 | ADAPTER |
| ST5 498255400 | PLATE |
Backlash:
0.13 — 0.18 mm (0.0051 — 0.0071 in)