Lexus GS300/400 (2000 year). Service manual — part 274
R00054
SST
SA–78
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
2078
If the backlash is not within the specification replace the washer
on the ring gear side with one of a different thickness using the
following procedure.
Adjusting washer thickness
No. Thickness mm (in.)
No. Thickness mm (in.)
No. Thickness mm (in.)
02 2.02 (0.0795)
32 2.32 (0.0913)
62 2.62 (0.1031)
04 2.04 (0.0803)
34 2.34 (0.0921)
64 2.64 (0.1039)
06 2.06 (0.0811)
36 2.36 (0.0929)
66 2.66 (0.1047)
08 2.08 (0.0819)
38 2.38 (0.0937)
68 2.68 (0.1055)
10 2.10 (0.0827)
40 2.40 (0.0945)
70 2.70 (0.1063)
12 2.12 (0.0835)
42 2.42 (0.0953)
72 2.72 (0.1071)
14 2.14 (0.0843)
44 2.44 (0.0961)
74 2.74 (0.1079)
16 2.16 (0.0850)
46 2.46 (0.0969)
76 2.76 (0.1087)
18 2.18 (0.0858)
48 2.48 (0.0976)
78 2.78 (0.1094)
20 2.20 (0.0866)
50 2.50 (0.0984)
80 2.80 (0.1102)
22 2.22 (0.0874)
52 2.52 (0.0992)
82 2.82 (0.1100)
24 2.24 (0.0882)
54 2.54 (0.1000)
84 2.84 (0.1118)
26 2.26 (0.0890)
56 2.56 (0.1008)
86 2.86 (0.1126)
28 2.28 (0.0898)
58 2.58 (0.1016)
–
30 2.30 (0.0906)
60 2.60 (0.1024)
–
14.
MEASURE TOTAL PRELOAD
Using SST and a torque wrench, measure the preload with the
teeth of the drive pinion and ring gear in contact.
SST
09229–55010
Total preload (at starting):
Drive pinion preload plus
0.5 – 0.8 N·m (5 – 8 kgf·cm, 4.3 – 6.9 in.·lbf)
If the measured preload is less than the specification, replace
the washer of the ring gear’s tooth surface side with a thicker
one.
If the preload is greater than the specification, replace the
washer of the ring gear’s tooth surface side with a thinner one.
HINT:
Changing the snap ring thickness by 0.02 mm (0.0008 in.) will
change the total preload by approx. 0.1 N·m (1 kgf·cm, 0.9
in.·lbf).
R00020
SA1125
Proper Contact Pattern
Forward
Reverse
SA1195
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
SA–79
2079
15.
INSPECT TOOTH CONTACT PATTERN
(a)
Coat 3 or 4 teeth at the 3 different positions on the ring
gear with red lead.
(b)
Hold the companion flange firmly and rotate the ring gear
in both directions.
(c)
Inspect the tooth contact pattern.
If tooth contact pattern is not correct, replace the adjusting
washer installed on the front of the drive pinion rear bearing to
adjust it.
NOTICE:
Make sure to always use a new one when replacing adjust-
ing washer.
HINT:
Refer to the table on the next page for selection of the adjusting
washer.
V02917
Tooth contact pattern
Forward
Reverse
+ 0.08 mm
(+ 0.0031 in.)
+ 0.14 mm
(+ 0.0055 in.)
Adjusting washer selection
Replacing the washer with one
0.08 mm (0.0031 in.) thicker will
give proper contact pattern.
– 0.08 mm
(– 0.0031 in.)
– 0.14 mm
(– 0.0055 in.)
Replacing the washer with one
0.14 mm (0.0055 in.) thicker will
give proper contact pattern.
Replacing the washer with one
0.08 mm (0.0031 in.) thicker
will give proper contact pattern.
Replacing the washer with one
0.14 mm (0.0055 in.) thicker will
give proper contact pattern.
SA–80
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
2080
HINT:
Adjust washers in 42 (different thickness in 0.01 mm (0.004 in.))
units are available.
No. Thickness mm (in.)
No. Thickness mm (in.)
No. Thickness mm (in.)
87 1.87 (0.0736)
01 2.01 (0.0791)
15 2.15 (0.0846)
88 1.88 (0.0740)
02 2.02 (0.0795)
16 2.16 (0.0850)
89 1.89 (0.0744)
03 2.03 (0.0799)
17 2.17 (0.0854)
90 1.90 (0.0748)
04 2.04 (0.0803)
18 2.18 (0.0858)
91 1.91 (0.0752)
05 2.05 (0.0807)
19 2.19 (0.0862)
92 1.92 (0.0756)
06 2.06 (0.0811)
20 2.20 (0.0866)
93 1.93 (0.0760)
07 2.07 (0.0815)
21 2.21 (0.0870)
94 1.94 (0.0764)
08 2.08 (0.0819)
22 2.22 (0.0874)
95 1.95 (0.0768)
09 2.09 (0.0823)
23 2.23 (0.0878)
96 1.96 (0.0772)
10 2.10 (0.0827)
24 2.24 (0.0882)
97 1.97 (0.0776)
11 2.11 (0.0831)
25 2.25 (0.0886)
98 1.98 (0.0780)
12 2.12 (0.0835)
26 2.26 (0.0890)
99 1.99 (0.0783)
13 2.13 (0.0839)
27 2.27 (0.0894)
00 2.00 (0.0787)
14 2.14 (0.0843)
28 2.28 (0.0898)
16.
REMOVE DIFFERENTIAL CARRIER RETAINERS
(See page
17.
REMOVE DIFFERENTIAL CASE (See page
18.
)
19.
INSTALL SPACER ON DRIVE PINION
Install a new spacer on the drive pinion.
20.
INSTALL DRIVE PINION AND FRONT BEARING
(See step 8)
21.
INSTALL OIL SLINGER (See step 8)
R00040
SST
SA1130
SST
SST
R00587
SST
R00054
SST
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
SA–81
2081
22.
INSTALL OIL SEAL
(a)
Apply MP grease to a new oil seal lip.
(b)
Using SST, install the oil seal until its end is flush with the
surface of the differential carrier.
SST
09316–60011 (09316–00011, 09316–00041),
09502–12010
23.
INSTALL COMPANION FLANGE
Using SST and a press, install the companion flange.
SST
09223–56010, 09325–40010
NOTICE:
Be careful not to damage the oil seal.
24.
ADJUST DRIVE PINION PRELOAD
(a)
Coat the threads and flange of a new nut with hypoid gear
oil for LSD.
(b)
Using SST, tighten the nut.
SST
09229–55010, 09330–00021
(c)
Using SST and a torque wrench, measure the preload.
SST
09229–55010
Preload (at starting):
New bearing:
1.5 – 1.8 N·m (15 – 18 kgf·cm, 13.0 – 15.6 in.·lbf)
Reused bearing:
0.5 – 0.8 N·m (5 – 8 kgf·cm, 4.3 – 6.9 in.·lbf)
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