Differential Bearing Preload

1. Place the differential into the converter housing.

2. Place Shim Selection Set, Shim Gauge Adapter Ring, and the rear bearing cup onto the differential.

3. Place the six Collars on the converter housing at the positions shown (A).

4. Set the transmission case on the converter housing, then install the six Collar Bolts and Washers.

5. Turn the shim selection gauge to increase the clearance by using the rods until the shim selection gauge no longer turns. This seats the bearing race. Turn the shim selection gauge in the opposite direction until the preload is eliminated (gap is reduced).

6. NOTE: Read the preload when the differential starts to turn.

NOTE: Take several measurements and calculate the average value.

Insert the Differential Rotator and attach a torque wrench to the Differential Rotator. Measure the drag on the differential bearing.

• Adjust the clearance of the Shim Selection Gauge, using the Rods to obtain the specified preload.

7. NOTE: Measure the clearance around the entire circumference. Select the shim(s) based on the largest clearance.

NOTE: Use no more than three shims.

Use a feeler gauge to measure the gap between the two halves of the shim selection gauge. Add 0.3 mm (0.0118 inch) to the largest measurement. Select the shim(s) closest in value to the measurement from the General Specifications chart.

8. Remove Bolts, Washers, transmission case, Collars, shim selection gauge, and the bearing cup.

9. Use (A) Driver Handle and (B) Bearing Cup Replacer to install the required selective shim(s) and tap the bearing cup into the transmission case.

10. Install the transmission case.

11. NOTE: Take several measurements and calculate the average value.

Install Differential Rotator and a torque wrench to the pinion shaft through the transmission case. Measure the bearing preload.

12. Repeat the gauging process if the preload is not within specification.
13. Remove the transmission case.