Front

FRONT OIL SEAL


Removal and Installation


REMOVAL
1. Drain gear oil. Refer to Changing Differential Gear Oil.
2. Remove front propeller shaft. Refer to Removal and Installation.
3. Remove front drive shaft both. Refer to Removal and Replacement.
4. Remove side shaft assembly.





5. Remove drive pinion lock nut using a flange wrench.
6. Put matching mark (B) on the end of the drive pinion. The matching mark (B) should be in line with the matching mark (A) on companion flange (1).






CAUTION:
For matching mark, use paint. Never damage companion flange and drive pinion.

NOTE:
The matching mark (A) on the final drive companion flange (1) indicates the maximum vertical runout position.





7. Remove companion flange using a puller.
8. Remove front oil seal using the puller.






Tool number A: KV381054S0 (J-34286)


CAUTION:
Be careful not to damage gear carrier.

INSTALLATION
1. Apply multi-purpose grease to front oil seal lips.





2. Using the drifts, install front oil seal as shown in figure.

Tool number
A: ST33400001 (J-26082)
B: KV38102510 ( - )


CAUTION:
- Never reuse oil seal.
- When installing, never incline oil seal.





3. Align the matching mark (B) of drive pinion with the matching mark (A) of companion flange, and then install the companion flange (1).
4. Apply anti-corrosion oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive pinion lock nut to drive pinion.

CAUTION:
Never reuse drive pinion lock nut.
5. Tighten to drive pinion lock nut, while adjust total preload torque.

Tool number A: ST3127S000 (J-25765-A)

Drive pinion lock nut tightening torque: 127.4 - 245.0 N�m (13.0 - 25.0 kg-m, 94 - 181 ft-lb)

Total preload torque: 1.56 - 2.65 N�m (0.16 - 0.27 kg-m, 14 - 23 in-lb)







CAUTION:
- Adjust to the lower limit of the drive pinion lock nut tightening torque first.
- After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rotation malfunction, and other malfunctions.
- If measured value is out of the specification, remove final drive assembly and disassemble drive pinion parts to check and adjust each part. Refer to Front Final Drive Assembly (VQ35HR), Front Final Drive Assembly (VK45DE), and Front Final Drive Assembly.
6. Install front propeller shaft. Refer to Removal and Installation.
7. Install side shaft assembly.
8. Install front drive shaft both. Refer to Removal and Replacement.
9. Refill gear oil to the final drive and check oil level. Refer to Changing Differential Gear Oil.
10. Check the final drive for oil leakage. Refer to Checking Differential Gear Oil.