Reaction Gear and Carrier Inspection

1. Inspect the reaction gear support case bearing for damage.
2. Install the reaction gear support case bearing into the case. The outside- bearing race should face the case hub.





3. Inspect the internal reaction gear and the internal reaction gear support for proper assembly, stripped splines, cracks, teeth, and lug damage.





4. Inspect the reaction carrier thrust and the support thrust bearing assembly for damage.





5. Check the pinion end play. The end play must not exceed 0.61 mm (0.024 inch).
Inspect the reaction carrier for the following conditions:
- Pinion gear damage
- Proper pinion staking
- Excessive pinion washer wear
- Keystoned pinion gears

6. Ensure that the pinions turn freely.





7. Check the captive thrust bearing for wear or damage.
7.1. Without touching the pinion gears, place a bushing or an output shaft sleeve onto the bearing race and turn it with the palm of your hand.
7.2. Any imperfections will be felt through the bushing.