Reaction Block Clearance Adjustment

INSTALL OR CONNECT
1. Left side gear thrust washer, clutch plates, and side gear. Bolt them into position. Refer to LEFT SIDE GEAR BACKLASH ADJUSTMENT.
2. Right side gear thrust washer and cam assembly. Bolt them into position. Refer to RIGHT SIDE GEAR BACKLASH ADJUSTMENT.

Measure





- The distance from the side gear face to the case half face.
A. The thickness of the straight edge must be subtracted from the reading.
B. Add the measurement of both sides together. This is the side gear spread.





3. The thickness of the original reaction blocks and reaction block thrust washers together.
4. If the combined reaction block and thrust washer thickness is not 0.000 to 0.1524 mm (0.000 to 0.006 inch) less than the side gear spread, adjust the clearance by:
- Some older locking differentials had select fit reaction blocks without the thrust washer between them. These models require replacing the reaction blocks with the correct thickness reaction block.
A. Selecting new reaction block thrust washer of the correct thickness to obtain 0.000 to 0.1524 mm (0.000 to 0.006 inch) clearance.
B. Reshim the left and/or right clutch disc pack. The side gear backlash must be maintained. Refer to RIGHT SIDE AND/OR LEFT SIDE GEAR BACKLASH ADJUSTMENT.