2000 LEXUS GS400 torque

SA0SC±01
F02394
Matchmarks
F03449
Matchmarks
F02353
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
SA±65
2065 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE EXHAUST PIPE
(See page EM±97 or EM±120)
2. REMOVE PROPELLER SHAFT (See page PR±4)
3. DISCONNECT REAR DRIVE SHAFTS
(a) Place matchmarks on the adjusting cam and lower sus-
pension arm.
(b) Remove the bolt and nut, disconnect the No.2 lower sus-
pension arm from the axle hub.
Torque: 110 N´m (1,120 kgf´cm, 81 ft´lbf)
(c) Remove the bolt and nut, disconnect the No.1 lower sus-
pension arm from the axle hub.
Torque: 75 N´m (765 kgf´cm, 55 ft´lbf)
(d) Place matchmarks on the 2 drive shafts and side gear
shafts.
NOTICE:
Do not punch to mark the matchmarks. Use paint etc.
(e) Using a 10 mm hexagon wrench, remove the 6 hexagon
bolts and 2 washers with depressing the brake pedal.
Torque: 83 N´m (850 kgf´cm, 61 ft´lbf)
HINT:
At the time of installation, apply a light coat of engine oil on the
threads of the bolts.
(f) Disconnect the drive shafts from the differential carrier.
4. REMOVE DIFFERENTIAL
(a) Support the differential carrier with a jack.
(b) Using a 12 mm hexagon wrench, remove the 3 hexagon
bolts
Torque: 142 N´m (1,450 kgf´cm, 105 ft´lbf)
(c) Remove the 2 bolts and lower mount stoppers.
Torque: 123 N´m (1,250 kgf´cm, 90 ft´lbf)
(d) Remove the differential.

R00054
SST
R00054
SST
R00243
SST
R00047
SST SA±68
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
2068 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
6. MEASURE DRIVE PINION PRELOAD
Using SST and a torque wrench, measure the preload using the
backlash of the drive pinion and ring gear.
Preload (at starting):
0.5 ± 0.8 N´m (5 ± 8 kgf´cm, 4.3 ± 6.9 in.´lbf)
HINT:
For vehicles which have run less than 8,000 km (5,000 miles),
the preload may be large.
SST 09229±55010
Maximum preload (at starting):
1.8 N´m (18 kgf´cm, 16.0 in.´lbf)
7. CHECK 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 necessary, disassemble and inspect the differential.
8. CHECK PINION GEAR BACKLASH
Using a dial indicator, measure the pinion gear backlash with
holding one side gear toward the case.
Maximum: 0.15 mm (0.0059 in.)
NOTICE:
Differential gears should be able to rotate.
If the backlash is not within the specification, install the correct
thrust washer (See page SA±73).
9. CHECK TOOTH CONTACT PATTERN
(See page SA±73)
10. REMOVE SIDE GEAR SHAFTS
(a) Using SST, remove the 2 side gear shafts.
SST 09520±24010
NOTICE:
Be careful not to damage the oil seal.
(b) Using screwdriver, remove the 2 snap rings from the side
gear shafts.
11. REMOVE SIDE GEAR SHAFT OIL SEALS
Using SST, remove the 2 oil seals.
SST 09308±00010
12. REMOVE DIFFERENTIAL CARRIER RETAINERS
(a) Remove the 16 bolts.

SA0R4±01
SA3213
D AB
C Front
F03479
A
B
F02401
± SUSPENSION AND AXLEREAR WHEEL ALIGNMENT
SA±7
2007 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REAR WHEEL ALIGNMENT
INSPECTION
1. MEASURE VEHICLE HEIGHT (See page SA±4)
2. INSTALL CAMBER±CASTER±KINGPIN GAUGE
ONTO WHEEL ALIGNMENT TESTER
Follow the specific instructions of the equipment manufacturer.
3. INSPECT CAMBER
Camber
Left±right error±0°47' ± 30' (±0.78° ± 0.5°)
30' (0.5°) or less
4. INSPECT TOE±IN
Toe±in
(total)A + B: 0°08' ± 12' (0.13° ± 0.2°)
C ± D: 1.4 ± 2 mm (0.056 ± 0.08 in.)
5. ADJUST CAMBER AND TOE±IN
(a) Measure the lengths of the toe control link and No.2 lower
suspension arm, as shown in the illustration.
Length: A ± B = 4.0 mm (0.16 in.) or less
If they are not within the specifications, adjust the lengths of
them by turning the adjusting cam, as shown, until (A ± B) is less
than 4.0 mm (0.16 in.).
(b) Measure the camber and toe±in.
(c) Adjust the camber.
(1) Loosen the camber adjusting cam nut of lower sus-
pension arm No.2.
(2) Turn the camber adjusting cam of lower suspension
arm No.2 and adjust camber.
HINT:
Camber changes about 5.0' (0.08°) with each graduation of the
cam.
(3) Torque the camber adjusting cam nut.
Torque: 110 N´m (1,120 kgf´cm, 81 ft´lbf)

F02402
SA±8
± SUSPENSION AND AXLEREAR WHEEL ALIGNMENT
2008 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Adjust the toe±in.
(1) Loosen the camber adjusting cam nut of toe control
link.
(2) Turn the camber adjusting cam of toe control link
and adjust toe±in.
HINT:
Camber changes about 5.0' (0.08°) with each graduation of the
cam.
(3) Torque the camber adjusting cam nut.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)

SA1143
Boiling Water
SA1158
Matchmarks
SA1148
SA1180
60 ± 90° 64 N´m (650 kgf´cm, 47 ft´lbf)
R15897
SST
SST SA±74
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
2074 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
3. INSTALL RING GEAR ON DIFFERENTIAL CASE
(a) Clean the contact surfaces of the differential case and the
threads of the ring gear and differential case.
(b) Heat the ring gear in boiling water.
(c) Carefully remove the ring gear from the boiling water.
(d) After the moisture on the ring gear has completely evapo-
rated, quickly install the ring gear to the differential case.
HINT:
Align the matchmarks on the ring gear and the differential case.
(e) Tighten 2 of the bolts temporarily so that the bolt holes in
the ring gear and differential case are not misaligned.
NOTICE:
The ring gear set bolts should not be tightened until the
ring gear has cooled sufficiently.
4. INSTALL RING GEAR SET BOLTS
(a) After the ring gear has cooled sufficiently, install new 10
ring gear set bolts to which thread lock has been applied.
Thread lock:
Part No. 08833±00100, THREE BOND 1360 K or equiv-
alent.
NOTICE:
New ring gear set bolts should be used in every case.
(b) Torque the 10 set bolts uniformly and a little at a time.
Torque: 64 N´m (650 kgf´cm, 47 ft´lbf)
(c) Tighten the bolts further by 60 ± 90°.
NOTICE:
Tighten the bolts in diagonally opposite pairs.
5. INSTALL SIDE BEARINGS
Using SST and a press, install the 2 side bearings.
SST 09710±30050, 09950±60010 (09951±00450),
09950±70010 (09951±07150)

SA1130
SST
SST
R00052
SST
R00054
SST
R15899
SST SA±76
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
2076 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Using SST and a press, install the companion flange.
SST 09223±46011, 09325±40010
9. TEMPORARILY ADJUST DRIVE PINION PRELOAD
(a) Adjust the drive pinion preload by tightening the compan-
ion flange nut.
HINT:
Using SST to hold the flange, tighten the nut.
SST 09229±55010, 09330±00021
NOTICE:
As there is no spacer, tighten the nut a little at a time, being
careful not to overtighten it.
(b) 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)
HINT:
For vehicles which have run 8,000 km (5,000 miles) or less, if
the preload value measured before disassembly is greater than
the specification for a reused bearing, return the preload to the
same as before disassembly.
10. INSTALL SIDE BEARING OUTER RACES AND AD-
JUSTING PLATE WASHERS
Using SST and a press, install the 2 adjusting plate washers
and outer races.
SST 09950±60020 (09951±00810),
09950±70010 (09951±07150)

R00022
R15900
SST RH
Front
R00027
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
SA±77
2077 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
11. INSTALL DIFFERENTIAL CASE IN CARRIER
Install the drive side bearing in the differential carrier first, as
shown in the illustration, then install the differential case.
12. INSTALL DIFFERENTIAL CARRIER RETAINERS
(a) Using SST and a hammer, install 2 carrier retainers.
SST 09950±60020 (09951±00890),
09950±70010 (09951±07150)
(b) Tighten the 16 bolts.
Torque: 22 N´m (225 kgf´cm, 16 ft´lbf)
13. CHECK RING GEAR BACKLASH
Using a dial indicator, measure the backlash of the ring gear at
3 positions at least.
Backlash: 0.08 ± 0.13 mm (0.0031 ± 0.0051 in.)
NOTICE:
The difference between the maximum and minimum mea-
sure values must be less than 0.05 mm (0.0020 in.).
HINT:
The measured values should be used as reference when se-
lecting washers, so take a note of the values.

R00054
SST SA±78
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
2078 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
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).