Front Differential Carrier End Play Check

^ Tools Required:
- J 8001 Dial Indicator Set
- J 25025-7A Dial Indicator Stand
- 4t80E Alignment Pin Set and Mounting Post
- J26958 Output Shaft Loading and Aligning tool
- J 26958-10 Adapter Plug
- J 28585 Snap Ring Remover
- J 38385 Output Shaft Loading Tool Adapter
- Or Equivalents





1. Make sure that the thrust washer (714) and the bearing (715) are still on the front differential carrier.
2. Install the case extension seal (8) onto the case extension (6).
3. Install the case extension assembly (6) onto the transmission (3).
4. Install only two of the four case extension bolts (5).

Tighten
Do not torque the bolts. Tighten them only until the case extension is fully seated.

5. Position the transmission so that the case extension is facing upward.





6. Install 4t80E, J26958-10, and J8001.
7. Set the dial indicator to zero.
8. Use J 28585 or a large screwdriver in order to lift the front differential carrier. Pry up on the vehicle speed sensor reluctor wheel through the sensor hole in the case extension.





9. Note the dial indicator reading before changing the carrier thrust washer (714):
^ If the dial indicator reading is less than 0.12 mm (0.005 inch), install the next smaller size thrust washer, then recheck.
^ If the dial indicator reading is greater than 0.62 mm (0.025 inch), install the next larger size thrust washer, then recheck.
^ If the dial indicator reading is 0.12 to 0.62 mm (0.005 to 0.025 inch), the thrust washer is correct.
10. Remove J8001 and J25025-7A.





11. Install J26958, J26958-10, and J38385 onto the case extension (6).