Final Drive
FINAL DRIVEDisassembly and Assembly
PRE-INSPECTION
1. Clean final drive assembly sufficiently to prevent side gear thrust washer, differential case, side gear, and other parts from sticking by gear oil.
2. Upright the differential case so that the side Gear to be measured faces upward.
3. Place final drive adapter and dial indicator onto side gears using Tool as shown.
Tool number: (J-39713)
4. Move side gears up and down, and measure the clearance as shown.
Clearance between side gear and differential case: 0.1 - 0.2 mm (0.004 - 0.008 inch)
CAUTION: There must be no resistance and the gears must rotate freely.
5. If the clearance measured is not within specification, adjust the clearance by changing the thrust washer thickness.
6. Turn the differential case upside down, and measure the clearance between the side gear and differential case on the other side to the same specifications, adjust using a thrust washer as necessary.
DISASSEMBLY
1. Remove the mounting bolts and then separate the final gear from the differential case.
2. Remove speedometer drive gear.
3. Remove the differential side bearing (clutch housing side) using tool and puller as shown.
Tool number: ST33061000 (J-8107-2)
4. Remove the differential side bearing (transaxle case side) using tool and puller as shown.
Tool number: ST33061000 (J-8107-2)
5. Using a pin punch, pull out lock pin and pinion mate shaft as shown.
6. Rotate pinion mate gears, and remove pinion mate gears, pinion mate thrust washers, side gears, and side gear thrust washers from differential case.
INSPECTION AFTER DISASSEMBLY
Gear, Washer, Shaft and Case
Check side gears, side gear thrust washers, pinion mate shaft, pinion mate gears, pinion mate thrust washers and differential case as shown. If necessary, replace with new parts.
Bearing
Check for bearing damage and rough rotation as shown. If necessary, replace with new parts.
CAUTION: When replacing the tapered roller bearing, replace the outer and inner races as a set.
ASSEMBLY
1. Apply gear oil to sliding area of differential case, each gear, and thrust washer.
2. Install side gear thrust washers and side gears into differential case as shown.
3. While rotating pinion mate thrust washers and pinion mate gears, and aligning them diagonally, install them into differential case.
4. Insert pinion mate shaft into differential case as shown.
CAUTION: Be sure not to damage pinion mate thrust washers.
5. Measure end play of side gears, using the procedure. Then select side gear thrust washer.
a. Upright the differential case so that the side gear to be measured faces upward.
b. Place final drive adapter and dial indicator onto side gears using tool as shown.
Tool number: (J-39713)
c. Move side gears up and down to measure end play, and select thrust washer so that it meets specification.
End play standard value: 0.1 - 0.2 mm (0.004 - 0.008 inch)
CAUTION:
^ There must be no resistance and the gears must rotate freely.
^ Place differential case upside down. Measure the end play for opposite side-gears using the same procedure.
^ Only one thrust washer can be selected.
Thrust washer
6. Drive a new lock pin into the pinion mate shaft using a pin punch as shown.
CAUTION: Do not reuse the lock pin.
7. Install differential side bearing (transaxle case side) using Tool as shown.
Tool number
A: ST30720000 (J-25405)
B: KV38102510 (J-35870)
8. Align and install the speedometer drive gear onto the differential case as shown.
9. Install differential side bearing (clutch housing side) using Tool as shown.
Tool number
A: ST30720000 (J-25405)
B: KV38102510 (J-35870)
10. Install the final gear into the differential case, and tighten the final gear bolts to specification.
Final gear bolts: 122.5 - 137.5 Nm (13 - 14 kg-m, 91 - 101 ft. lbs.)