Page 1050 of 1111
SA0RT±01
SA±38
± SUSPENSION AND AXLEFRONT LOWER BALL JOINT
2038 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±36).
AFTER INSTALLATION, CHECK FRONT WHEEL ALIGNMENT (See page SA±4)
Page 1052 of 1111

F02399
FRONT
REARSA0R3±01
Z03382
SA3213
A
DB
C Front
SA±4
± SUSPENSION AND AXLEFRONT WHEEL ALIGNMENT
2004 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FRONT WHEEL ALIGNMENT
INSPECTION
1. MEASURE VEHICLE HEIGHT
Tire sizeFront*1 mm (in.)Rear*2 mm (in.)
P215/60R16 94V245 (9.63)226 (8.90)
225/55R16 94V240 (9.45)221 (8.70)
235/45ZR17238 (9.37)219 (8.62)
*1: Front measuring point
Measure from the ground to the center of the lower suspension
arm mounting bolt.
*
2: Rear measuring point
Measure from the ground to the center of the No.2 lower sus-
pension arm mounting bolt.
NOTICE:
Before inspecting the wheel alignment, adjust the vehicle
height to the specification.
If the vehicle height is not within the specification, try to adjust
it by pushing down on or lifting the body.
2. INSTALL CAMBER±CASTER±KINGPIN GAUGE
ONTO WHEEL ALIGNMENT TESTER
Follow the specific instructions of the equipment manufacturer.
3. INSPECT CAMBER, CASTER AND STEERING AXIS
INCLINATION
Camber
Left±right error±0°16' ± 30' (±0.27° ± 0.5°)
30' (0.5°) or less
Caster
Left±right error7°33' ± 30' (7.55° ± 0.5°)
30' (0.5°) or less
Steering axis inclination
Left±right error8°52' ± 30' (8.87°± 0.5°)
30' (0.5°) or less
If the camber is not within the specification, adjust it by adjusting
cam.
4. INSPECT TOE±IN
Toe±in
(total)A + B: 0°09' ± 12' (0.15° ± 0.2°)
C ± D: 1.5 ± 2 mm (0.06 ± 0.08 in.)
If the toe±in is not within the specification, adjust it at the tie rod
end.
Page 1053 of 1111

F02400
SA1204
± SUSPENSION AND AXLEFRONT WHEEL ALIGNMENT
SA±5
2005 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
5. ADJUST CAMBER
HINT:
After adjusting the camber, inspect the caster and toe±in.
Try adjusting the camber to the center value of the specifi-
cation.
(a) Loosen the camber adjusting cam nut of the lower sus-
pension arm.
(b) Turn the camber adjusting cam of the lower suspension
arm and adjust camber.
HINT:
Camber changes about 5' (0.08°) with each graduation of the
adjusting cam.
(c) Torque the camber adjusting cam nut of lower suspension
arm.
Torque: 172 N´m (1,755 kgf´cm, 127 ft´lbf)
6. ADJUST TOE±IN
(a) Remove the boot clips.
(b) Loosen the tie rod end lock nuts.
(c) Turn the left and right rack ends an equal amount to adjust
the toe±in.
HINT:
Try to adjust the toe±in to the center value.
Make sure that the lengths of the left and right rack ends
are same.
Rack end length difference: 1.5 mm (0.059 in.) or less
(d) Torque the tie rod end lock nuts.
Torque: 56 N´m (570 kgf´cm, 41 ft´lbf)
(e) Place the boot on the seat and clamp it.
HINT:
Make sure that the boots are not twisted.
Page 1054 of 1111
SA0028
Front
A: Inside
B: Outside A
A
BB
SA±6
± SUSPENSION AND AXLEFRONT WHEEL ALIGNMENT
2006 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
7. INSPECT WHEEL ANGLE
Turn the steering wheel fully, and measure the turning angle.
Inside wheel38°51' (36°51' ± 39°51')
38.85° (36.85° ± 39.85°)
Outside wheel (Reference)32°05'
32.08°
If the wheel angles differ from the standard of the specification,
inspect the toe±in.
Page 1059 of 1111

SA0RZ±01
F02396
F02326
SA±44
± SUSPENSION AND AXLEREAR AXLE CARRIER
2044 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE REAR WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE ABS SPEED SENSOR
Torque: 7.8 N´m (80 kgf´cm, 69 in.´lbf)
3. REMOVE REAR BRAKE CALIPER AND DISC
(a) Remove the 2 bolts and brake caliper from the axle hub.
(b) Support the brake caliper securely.
(c) Remove the disc.
4. CHECK BEARING BACKLASH AND AXLE HUB DEVI-
ATION
(a) Using a dial indicator near the center of the axle hub and
check the backlash in the bearing shaft direction.
Maximum: 0.05 mm (0.0020 in.)
If the backlash exceeds the specified maximum, replace the
bearing.
(b) Using a dial indicator, check the deviation at the surface
of the axle hub outside the hub bolt.
Maximum: 0.07 mm (0.0028 in.)
If the deviation exceeds the specified maximum, replace the
axle hub.
5. INSTALL DISC AND BRAKE CALIPER
(a) Install the disc.
(b) Install the brake caliper and 2 bolts to the axle carrier.
Torque: 104 N´m (1,065 kgf´cm, 77 ft´lbf)
6. REMOVE DRIVE SHAFT (See page SA±52)
7. REMOVE BRAKE CALIPER AND DISC (See step 2)
8. REMOVE PARKING BRAKE SHOE
(See page BR±33)
9. DISCONNECT PARKING BRAKE CABLE
Remove the 2 bolts and disconnect the parking brake cable.
Torque: 7.8 N´m (80 kgf´cm, 69 in.´lbf)
10. DISCONNECT UPPER SUSPENSION ARM FROM
AXLE CARRIER
(a) Remove the nut.
Torque: 108 N´m (1,100 kgf´cm, 80 ft´lbf)
Page 1065 of 1111

SA0S5±03
F02394
Matchmarks
F03449
Matchmarks
SA±52
± SUSPENSION AND AXLEREAR DRIVE SHAFT
2052 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE REAR WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE SUSPENSION MEMBER BRACE
Remove the 2 bolts and suspension member brace.
Torque: 50 N´m (510 kgf´cm, 37 ft´lbf)
3. REMOVE COTTER PIN, LOCK CAP AND LOCK NUT
(a) Remove the cotter pin and lock cap.
(b) With depressing the brake pedal, remove the nut.
Torque: 289 N´m (2,950 kgf´cm, 213 ft´lbf)
4. REMOVE DRIVE SHAFT
(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 drive shaft and side gear shaft.
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) Hold the inboard joint side of the drive shaft so that the
outboard joint side does not bend too much.
Page 1085 of 1111

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)
Page 1086 of 1111
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)