Ring Gear and Differential Inspection

RING GEAR AND DIFFERENTIAL INSPECTION

Taper Roller Bearing Inspection






1. Place the ring gear and differential with the ring gear side pointing upward on a workbench.











2. Assemble the bearing race to the ring gear and differential.

NOTE: Bearing race size: Outer diameter approx. 80 mm {3.1 in}






3. With a load applied by hand to the bearing race, rotate the bearing race and verify that there is no malfunction in the taper roller bearing (rotation sticking).
- If there is a malfunction, disassemble the ring gear and differential and replace the taper roller bearing with a new one.
(See RING GEAR AND DIFFERENTIAL DISASSEMBLY.) (See RING GEAR AND DIFFERENTIAL ASSEMBLY.)






4. Remove the bearing race.






5. Place the ring gear and differential with the ring gear side pointing downward on a workbench.











6. Assemble the bearing race to the ring gear and differential.

NOTE: Bearing race size: Outer diameter approx. 80 mm {3.1 in}






7. With a load applied by hand to the bearing race, rotate the bearing race and verify that there is no malfunction in the taper roller bearing (rotation sticking).
- If there is a malfunction, disassemble the ring gear and differential and replace the taper roller bearing with a new one.
(See RING GEAR AND DIFFERENTIAL DISASSEMBLY.) (See RING GEAR AND DIFFERENTIAL ASSEMBLY.)






8. Remove the bearing race.

Differential Journal Inspection






1. Measure the inner diameter of the journal (front side) shown in the figure.

NOTE:
- When measuring, measure near the center of the journal avoiding the oil groove, and then calculate the average value of the X and Y directions as shown in the figure.
- Recommended measuring instrument: Cylinder gauge or caliper gauge

Maximum:
30.046 mm {1.1829 in}

- If it is more than the maximum specification, disassemble the ring gear and differential and replace the differential gear case with a new one.
(See RING GEAR AND DIFFERENTIAL DISASSEMBLY.) (See RING GEAR AND DIFFERENTIAL ASSEMBLY.)






2. Measure the inner diameter of the journal (rear side) shown in the figure.

NOTE:
- When measuring, measure near the center of the journal avoiding the oil groove, and then calculate the average value of the X and Y directions as shown in the figure.
- Recommended measuring instrument: Cylinder gauge or caliper gauge

Maximum:
30.046 mm {1.1829 in}

- If it is more than the maximum specification, disassemble the ring gear and differential and replace the differential gear case with a new one.
(See RING GEAR AND DIFFERENTIAL DISASSEMBLY.) (See RING GEAR AND DIFFERENTIAL ASSEMBLY.)

Differential Backlash Inspection
1. Perform the following the inspection and measurement/adjustment in the order and replace a malfunctioning part with a new one.
1. Drive shaft journal inspection (See DRIVE SHAFT JOURNAL INSPECTION.)
2. Differential backlash measurement/adjustment (See DIFFERENTIAL BACKLASH MEASUREMENT/ADJUSTMENT.)