RING GEAR AND DIFFERENTIAL INSPECTION

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Tapered Roller Bearing Inspection

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

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

Note

•  Bearing race size: Outer diameter approx. 90 mm {3.5 in}, width approx. 17.25 mm {0.6791 in}

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3.  With a load applied by hand to the bearing race, rotate the bearing race and verify that there is no malfunction in the tapered roller bearing (rotation sticking).

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•  If there is a malfunction, disassemble the ring gear and differential and replace the tapered roller bearing with a new one.

(See RING GEAR AND DIFFERENTIAL DISASSEMBLY.)

(See RING GEAR AND DIFFERENTIAL ASSEMBLY.)

4.  Remove the bearing race.

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

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

Note

•  Bearing race size: Outer diameter approx. 90 mm {3.5 in}, width approx. 21 mm {0.83 in}

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7.  With a load applied by hand to the bearing race, rotate the bearing race and verify that there is no malfunction in the tapered roller bearing (rotation sticking).

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•  If there is a malfunction, disassemble the ring gear and differential and replace the tapered roller bearing with a new one.

(See RING GEAR AND DIFFERENTIAL DISASSEMBLY.)

(See RING GEAR AND DIFFERENTIAL ASSEMBLY.)

8.  Remove the bearing race.

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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

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•  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

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•  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 indicated 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.)