Inspection [09/2022 - ]: Procedure

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INSPECT FRONT NO. 1 DIFFERENTIAL CASE SUB-ASSEMBLY

Using SST, rotate the front differential side gear as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

SST: 09528-52010
1. 09528-05030

Standard

The front differential side gear does not lock when rotated in either direction.

If the front differential side gear locks, perform all remaining inspection procedures.
Replace any parts that do not meet the specifications.
If the front differential side gear locks after performing the inspection procedures, replace the front No. 1 differential case sub-assembly.

INSPECT FRONT DIFFERENTIAL SIDE GEAR THRUST AMOUNT

Secure the front No. 1 differential case sub-assembly with ring gear in a vise between aluminum plates.
NOTE:
Do not overtighten the vise.

Using SST and a dial indicator, measure the front differential side gear thrust amount.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Front Differential Side Gear Thrust Amount

SST: 09528-52010
1. 09528-05030

Front Differential Side Gear Thrust Amount

0.08 mm (0.00315 in.) or less

HINT:

Measure the front differential side gear thrust amount while slowly rotating the front differential side gear.
Make sure to measure the front differential side gear thrust amount for both of the 2 front differential side gears.

If the result is not as specified, replace the 2 front differential side gears, 2 front differential pinions and 2 conical springs.

INSPECT FRONT DIFFERENTIAL PINION BACKLASH

Set SST as shown in the illustration and tighten it.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Turn

Hold

SST: 09528-52010
1. 09528-05010
2. 09953-05010

Torque: 10 N.m (102 kgf/cm, 7 ft.lbf)

Install the front No. 1 differential pinion shaft to the front differential pinion as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*1	Front No. 1 Differential Pinion Shaft

Using a dial indicator, measure the front differential pinion backlash.

Standard Backlash

0.15 mm (0.00591 in.) or less

If the backlash is not as specified, replace the front No. 1 differential side gear thrust washers with washers of a different thickness. Use the table below to select a front No. 1 differential side gear thrust washer which will ensure that the backlash is within the specification.

Front No. 1 Differential Side Gear Thrust Washer Thickness

Specified Condition
1.25 mm (0.0492 in.)
1.30 mm (0.0512 in.)
1.35 mm (0.0531 in.)
1.40 mm (0.0551 in.)
1.45 mm (0.0571 in.)
1.50 mm (0.0591 in.)
1.55 mm (0.0610 in.)
1.60 mm (0.0630 in.)
1.65 mm (0.0650 in.)
1.70 mm (0.0669 in.)
1.75 mm (0.0689 in.)
1.80 mm (0.0709 in.)
1.85 mm (0.0728 in.)
1.90 mm (0.0748 in.)
1.95 mm (0.0768 in.)

HINT:

Select front No. 1 differential side gear thrust washers of the same thickness for both the right and left side.

INSPECT FRONT DIFFERENTIAL PINION THRUST WASHER

Using a micrometer, measure the thickness of the front differential pinion thrust washer.

Minimum Thickness

0.54 mm (0.0213 in.)

If the thickness is less than the minimum, replace the front differential pinion thrust washer.

INSPECT FRONT NO. 1 DIFFERENTIAL PINION SHAFT

Using a micrometer, measure the outer diameter of the front No. 1 differential pinion shaft.

*a	Outer Diameter

Minimum Outer Diameter

20.499 mm (0.807 in.)

If the outer diameter is less than the minimum, replace the front No. 1 differential pinion shaft.