Carrier Bearings: Adjustments

TAPERED ROLLER BEARING PRELOAD ADJUSTMENT

TOOLS REQUIRED
* 07749-0010000 Driver
* 07GAD-SD40100 Attachment, 78 x 90 mm
* Or Equivalent

NOTE: If the transmission housing, torque converter housing, differential carrier, tapered roller bearing, outer race, or thrust shim were replaced, the bearing preload must be adjusted.

1. Remove the bearing outer race, thrust washer and thrust shim from the transmission housing by heating the housing to about 212°F (100°C) with a heat gun. Do not heat the housing in excess of 212°F (100°C).

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

2. Replace the tapered roller bearing when the outer race is to be replaced.





3. Do not use a shim on the torque converter housing side.





4. Select the 2.60 mm (0.102 inch) thrust shim from the middle of the table below.





5. Install the thrust shim, thrust washer and bearing outer race in the transmission housing.
6. Drive the outer race with the special tools, and install it securely in the transmission housing.





7. Check that there is no clearance between the thrust washer, outer race, shim and transmission housing.
8. Install the differential assembly, gasket, and dowel pins on the torque converter housing. Align the spring pin on the control shaft with the transmission housing groove.





9. Install the transmission housing with the transmission hangers and harness clamp bracket, and tighten the bolts.
10. Rotate the differential assembly in both directions to seat the bearings.





11. Measure the starting torque of the differential assembly with the special tools and a torque wrench. Measure the starting torque at normal room temperature in both directions.
* STANDARD:
New bearing: 2.7 - 3.9 Nm (24 - 35 in.lb).
Reused bearings: 2.5 - 3.6 Nm (22 - 32 in.lb).
12. To increase the starting torque, increase the thickness of the shim. To decrease the starting torque, decrease the thickness of the shim. Changing the shim to the next size will increase or decrease starting torque about 0.3 - 0.4 Nm (3 - 3 in.lb).