M/T Differential Carrier Bearing Preload Adjustment

M/T Differential Carrier Bearing Preload Adjustment

Special Tools Required

- Preload Inspection Tool 07XAJ-S0KA100

If any of the items listed below were replaced, the carrier bearing preload must be adjusted.

- Transmission housing
- Clutch housing
- Differential carrier
- Spacer
- Carrier bearing and outer race

1. Disassemble the transmission Manual Transmission Disassembly.

2. Install the 81 mm shim, the spacer, and the bearing outer race into the transmission housing, and install the spacer and the bearing outer race into the clutch housing, if they are removed M/T Differential Carrier Bearing Outer Race Replacement.

NOTE:

- The tapered roller bearing and the bearing outer race compose the carrier bearing are always should be a set. Do not combine the other one.
- Note the thickness size of the used 81 mm shim.

3. Install the differential carrier with the tapered roller bearing, and assemble the transmission housing and the clutch housing using the 10 mm flange bolts by specified tightening torque Manual Transmission Reassembly.

NOTE: It is not necessary to use sealing agent between the housings for this adjustment.

4. Rotate the differential assembly in both directions to seat the carrier bearings.

5. At normal room temperature, measure the starting torque of the differential assembly by rotating it in both directions using the preload inspection tool (A) and a torque wrench (B).





6. If the carrier bearing preload is not within the standard, select an 81 mm shim that will provide the correct preload:

- Compare the bearing preload you got on the first try with the specified preload of 3.43-4.51 Nm (35-46 kgf-cm, 30-40 lbf-in).
- If the preload you measure was less than specified, subtract it from the specified preload.
- If the preload you measure was more than specified, subtract the specified preload from the preload you measure.





For example, with a 2.50 mm (0.098 in) shim:









NOTE: Each shim size up or down from standard makes about 0.3-0.4 Nm (3-4 kgf-cm, 2.6-3.5 lbf-in) difference in preload.

In example (1), your preload was 1.96 Nm (20 kgf-cm, 17 lbf-in) less than the standard, so you need a shim five sizes thicker than standard (try the 2.65 mm (0.104 in) 81 mm shim, and recheck).

In example (2), your preload was 0.78 Nm (8 kgf-cm, 7 lbf-in) more than the standard, so you need a shim two sizes thinner (try the 2.44 mm (0.096 in) 81 mm shim, and recheck).

81 mm Shim





7. Once the carrier bearing preload is correct, disassemble the transmission housing, and install new oil seals in the differential M/T Differential Oil Seal Replacement.

8. Reassemble the transmission Manual Transmission Reassembly.