A/T Differential Carrier Bearing Preload Inspection

A/T Differential Carrier Bearing Preload Inspection

Special Tools Required

- Driver Handle, 15 x 135L 07749-0010000
- Bearing Driver Attachment, 72 x 75 mm 07746-0010600
- Preload Inspection Tool 07HAJ-PK40201

NOTE:

- If the transmission housing, the torque converter housing, the differential carrier, the carrier bearing and the outer race, or the thrust shim were replaced, the bearing preload must be adjusted.
- Coat all parts with ATF during installation.
- Do not use the thrust shim from the torque converter housing.
- The illustration shows the 4WD transmission; the 2WD transmission is similar.

1. Remove the bearing outer race (A), the 76.2 mm thrust washer (B), and the 76 mm thrust shim (C) from the transmission housing (D) by heating the transmission housing to about 212 °F (100 °C) using a heat gun (E). Do not heat the transmission housing more than 212 °F (100 °C).

NOTE: Let the transmission housing cool to room temperature before adjusting the bearing preload.






2. Install the 76 mm thrust shim (A) in the transmission housing (B).
If you install a new 76 mm thrust shim, use the same thickness shim as the old one.





3. Install the 76.2 mm thrust washer (C) and the bearing outer race (D) in the transmission housing.

NOTE: Be sure to install the 76.2 mm thrust washer with the "41382RKY" mark facing downward.

4. Install the bearing outer race securely so there is no clearance between the bearing outer race, the 76.2 mm thrust washer, the 76 mm thrust shim, and the transmission housing, using the driver handle and the 72 x 75 mm attachment.






5. Install the differential assembly (A) in the torque converter housing (B).





6. Install the three dowel pins (C) and a new gasket (D) on the torque converter housing.

7. Align the spring pin (E) of the control shaft (F) with the transmission housing groove (G) by turning the control shaft. Do not squeeze the end of the control shaft tips together when turning the shaft.

8. Place the transmission housing (H) on the torque converter housing.

9. Install the transmission housing mounting bolts (20 bolts) along with the transmission hanger (I) and the harness clamp brackets (J). Tighten the mounting bolts to 44 Nm (4.5 kg-m, 33 lb-ft) in a crisscross pattern in at least two steps.

10. Rotate the differential assembly in both directions to seat the bearings.

11. Measure the starting torque of the differential assembly in both directions using the preload inspection tool, a torque wrench (A), and a socket (B) at normal room temperature.










12. If the starting torque is out of the standard, remove the 76 mm thrust shim and select a 76 mm thrust shim from the following table. Install a new 76 mm thrust shim and recheck. To increase the starting torque, increase the thickness of the 76 mm thrust shim. To decrease the starting torque, decrease the thickness of the 76 mm thrust shim. Changing the 76 mm thrust shim to the next size will increase or decrease starting torque about 0.3-0.4 Nm (3-4 kgf-cm,2.7-3.5 lbf-in).

THRUST SHIM TYPE A








THRUST SHIM TYPE B