Page 2129 of 4500
Fig. 89: Tapping Drive Pinion Side Of Differential Carrier
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
k. Using a plastic hammer, lightly tap the drive pinion side of the differential carrier.
l. Check the backlash around the ring gear. If even one backlash is smaller than the
specified value, adjust the differential ring gear backlash by replacing the side gear
shaft snap ring on the drive pinion side with a thicker one.
Backlash: 0.08 to 0.13 mm (0.0031 to 0.0051 in.)
HINT:
If a value is not within the specified range, replace it with one of a different thickness
in the same procedure.
90521-990763.92 (0.1543)90521-991014.32 (0.1701)
90521-990773.94 (0.1551)90521-991024.34 (0.1709)
90521-990783.96 (0.1559)90521-991034.36 (0.1717)
90521-990793.98 (0.1567)90521-991044.38 (0.1724)
90521-990814.00 (0.1575)90521-991054.40 (0.1732)
90521-990824.02 (0.1583)90521-991074.42 (0.1740)
90521-990834.04 (0.1591)
Page 2130 of 4500
Fig. 90: Checking Ring Gear Backlash
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
ADJUST TOTAL PRELOAD
a. Using SST and a torque wrench, measure the preload with the teeth of the drive pinion
and ring gear in contact.
b. SST 09229-55010
Total preload (at starting):
Drive pinion preload plus 0.46 to 1.37 N.m
(4.69 to 13.97 kgf.cm, 4.07 to 12.13 in..lbf)
If the preload is greater than the specification, replace the rear differential side
gear shaft snap ring of the ring gear's tooth surface side with a thinner one.
Page 2131 of 4500
HINT:
When the rear differential side gear shaft snap ring thickness changes by 0.02 mm
(0.0008 in.), the total preload will change by approximately 0.1 N.m (1 kgf.cm, 0.9
in..lbf).
Fig. 91: Adjusting Total Preload
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Set a dial indicator to the end of the differential ring gear face.
d. While holding the rear drive pinion companion flange rear, rotate the differential ring
gear and measure the backlash.
Backlash: 0.08 to 0.13 mm (0.0031 to 0.0051 in.)
Page 2132 of 4500
e. Recheck the total preload.
Fig. 92: Checking Differential Ring Gear Backlash
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION
a. Coat 3 or 4 teeth at the 3 different positions on the ring gear with red lead primer.
b. Hold the companion flange firmly and rotate the ring gear in both directions.
c. Inspect the tooth contact pattern.
Page 2133 of 4500
Fig. 93: Inspecting Tooth Contact Between Ring Gear And Drive Pinion
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
If tooth contact pattern is not correct, replace the adjusting washer installed on the
front of the drive pinion rear bearing to adjust it.
HINT:
Refer to the table on the next page to select the adjusting washer.
Page 2134 of 4500
Fig. 94: Locating Adjusting Washer Installed On Front Of Drive Pinion Rear
Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Page 2135 of 4500

Fig. 95: Tooth Contact Pattern Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HINT:
There are 42 thicknesses of the rear differential drive pinion plate washers available in
0.01 mm (0.04 in.) difference.
REAR DIFFERENTIAL DRIVE PINION PLATE WASHERS THICKNESS
Parts No.Thickness mm (in.)No.Parts No.Thickness mm (in.)No.
90201-700011.87 (0.0736)8790201-700222.08 (0.0819)08
90201-700021.88 (0.0740)8890201-700232.09 (0.0823)09
90201-700031.89 (0.0744)8990201-700242.10 (0.0827)10
90201-700041.90 (0.0748)9090201-700252.11 (0.0831)11
90201-700051.91 (0.0752)9190201-700262.12 (0.0835)12
90201-700061.92 (0.0756)9290201-700272.13 (0.0839)13
90201-700071.93 (0.0760)9390201-700282.14 (0.0843)14
90201-700081.94 (0.0764)9490201-700292.15 (0.0846)15
90201-700091.95 (0.0768)9590201-700302.16 (0.0850)16
90201-700101.96 (0.0772)9690201-700312.17 (0.0854)17
90201-700111.97 (0.0776)9790201-700322.18 (0.0858)18
90201-700121.98 (0.0780)9890201-700332.19 (0.0862)19
90201-700131.99 (0.0783)9990201-700342.20 (0.0866)20
90201-700142.00 (0.0787)0090201-700352.21 (0.0870)21
90201-700152.01 (0.0791)0190201-700362.22 (0.0874)22
90201-700162.02 (0.0795)0290201-700372.23 (0.0878)23
90201-700172.03 (0.0799)0390201-700382.24 (0.0882)24
Page 2136 of 4500
REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING
a. Install the SST to the rear differential carrier assy.
SST 09571-50010
Fig. 96: Installing SST To Rear Differential Carrier Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Install a dial indicator to the rear differential carrier assy.
c. Tighten the SST bolt and alter the differential carrier's shape to create a 0.1 mm (0.004
in.) clearance between the side bearing (outer race) and side gear shaft snap ring.
90201-700182.04 (0.0803)0490201-700392.25 (0.0886)25
90201-700192.05 (0.0807)0590201-700402.26 (0.0890)26
90201-700202.06 (0.0811)0690201-700412.27 (0.0894)27
90201-700212.07 (0.0815)0790201-700422.28 (0.0898)28