Differential
A/T DifferentialA/T Differential Component Location Index:
Backlash Inspection
1. Install the driveshafts on the differential, then place the axles on V-blocks.
2. Check the backlash of the pinion gears (A) with a dial indicator (B).
3. If the backlash is out of standard, replace the differential carrier.
Carrier Bearing Replacement
Special Tools Required
Attachment, 40 x 50 mm 07LAD-PW50601
NOTE:
^ The bearing and the bearing outer race should be replaced as a set.
^ Inspect and adjust the carrier bearing preload whenever the bearing is replaced.
^ Check the bearing for wear and rough rotation. If the bearing is OK, removal is not necessary.
1. Remove the carrier bearing (A) with a commercially available puller (B), bearing separator (C), and stepped adapter (D).
2. Install the new bearings with the 40 x 50 mm attachment using the small end and a press until it bottoms. Press the bearing on securely so there is no clearance between the bearing and the differential carrier.
Differential Carrier, Final Driven Gear Replacement
1. Remove the final driven gear (A) from the differential carrier (B).
NOTE: Differential carrier bolts have left-hand threads.
2. Install the final driven gear in the direction shown on the differential carrier.
3. Tighten the bolts to the specified torque in a crisscross pattern.
Oil Seal Replacement
Special Tools Required
^ Driver 07749-0010000
^ Oil seal driver attachment 07947-SD90101
^ Oil seal driver attachment 07JAD-PH80101
1. Remove the oil seal from the transmission housing.
2. Remove the oil seal from the torque converter housing.
3. Install a new oil seal (A) in the transmission housing with the driver and the oil seal driver attachment.
4. Install the new oil seal (A) in the torque converter housing with the driver and the oil seal driver attachment.
Carrier Bearing Outer Race Replacement
Special Tools Required
^ Driver 07749-0010000
^ Attachment, 78 x 90 mm 07GAD-SD40101
^ Attachment, 72 x 75 mm 07746-0010600
NOTE:
^ The bearing and the bearing outer race should be replaced as a set.
^ Replace the bearing with a new one whenever the outer race is replaced.
^ Do not use the thrust shim on the torque converter housing.
^ Adjust bearing preload after replacing the bearing and outer race.
^ Coat all parts with ATF during installation.
1. Remove the bearing outer race (A), 76.2 mm thrust washer (B), and 76 mm thrust shim (C) from the transmission housing (D) by heating the housing to about 212 °F (100°C) with a heat gun (E). Do not heat the housing in excess of 212 °F (100 °C).
NOTE: Let the transmission housing cool to room temperature before installing the bearing outer race.
2. Remove the bearing outer race (A) and 80 mm thrust washer (B) from the torque converter housing (C).
3. Install the 80 mm thrust washer and the new bearing outer race in the torque converter housing.
4. Install the bearing outer race into the torque converter housing with the driver and the 78 x 90 mm attachment.
5. Install the 76 mm thrust shim (A), the 76.2 mm thrust washer (B), and the new bearing outer race (C) in the transmission housing (D).
6. Install the bearing outer race into the transmission housing with the driver and the 72 x 75 mm attachment so there is no clearance between the outer race, thrust washer, shim and transmission housing.
Carrier Bearing Preload Inspection
Special Tools Required
^ Driver 07749-0010000
^ 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 in the torque converter housing.
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 housing to about 212 °F (100°C) with heat gun (E). 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. Install the 76 mm thrust shim (A) in the transmission housing (B). If you replace the 76 mm thrust shim with a new one, 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.
4. Insert the bearing outer race into the transmission housing with the driver and the 72 x 75 mm attachment so there is no clearance between the outer race, thrust washer, shim and transmission housing.
5. Install the differential assembly (A) in the torque converter housing (B), and install the gasket (C) and the dowel pins (D) on the housing.
6. Install the transmission housing (E) and the transmission hanger (F), then tighten the bolts.
7. Rotate the differential assembly in both directions to seat the bearings.
8. Measure the starting torque of the differential assembly in both directions with the preload inspection tool, a torque wrench (A) and socket (B) at normal room temperature.
9. If the measurement is out of standard, remove the thrust shim, and select the thrust shim from following table. Install the new thrust shim and recheck. To increase the starting torque, increase the thickness of the thrust shim. To decrease the starting torque, decrease the thickness of the shim. Changing the thickness of shim by 0.05 mm will increase or decrease starting torque about 0.3-0.4 N-m (3-4 kgf-cm, 2-3 lbf-in.).
