steering LEXUS GS400 2000 Service Repair Manual

SA0R7±05
R05806
R11093
SST
R11078
SST SA±12
± SUSPENSION AND AXLEFRONT AXLE HUB
2012 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
DISASSEMBLY
1. REMOVE FRONT HUB GREASE CAP
Using a screwdriver, remove the grease cap from the steering
knuckle.
2. REMOVE FRONT AXLE HUB LOCK NUT AND ABS
SPEED SENSOR ROTOR
(a) Clamp the axle hub in a soft jaw vise.
HINT:
Close vise until it holds hub bolt. Do not tighten further.
(b) Using a chisel and hammer, loosen the staked part of the
lock nut.
(c) Using a 36 mm socket wrench, remove the lock nut.
(d) Remove the ABS speed sensor rotor.
NOTICE:
Take care not to scratch the serrations of the sensor rotor.
3. REMOVE AXLE HUB FROM STEERING KNUCKLE
(a) Remove the 4 bolts and shift the brake dust cover toward
the outside.
(b) Using SST, remove the axle hub from the steering
knuckle.
SST 09950±40011 (09951±04020, 09952±04010,
09953±04020, 09954±04010, 09955±04051,
09957±04010, 09958±04011)
4. REMOVE INNER RACE (OUTSIDE) FROM AXLE HUB
Using SST, remove the inner race from the axle hub.
SST 09950±40011 (09951±04020, 09952±04010,
09953±04020, 09954±04010, 09955±04061,
09957±04010, 09958±04011)

R06209
SST
W00273
SST
± SUSPENSION AND AXLEFRONT AXLE HUB
SA±13
2013 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
5. REMOVE OIL SEAL
Using SST, remove the oil seal from the steering knuckle.
SST 09308±00010
6. REMOVE BEARING FROM STEERING KNUCKLE
(a) Using snap ring pliers, remove the snap ring.
(b) Using SST and a press, remove the bearing from the
steering knuckle.
SST 09950±60010 (09951±00560)

SA0R8±01
W00274
SST
SST
R06214
SST
R08018
SST
SST SA±14
± SUSPENSION AND AXLEFRONT AXLE HUB
2014 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REASSEMBLY
1. INSTALL BEARING
(a) Using SST and a press, install a new bearing to steering
knuckle.
SST 09309±36010, 09950±60020 (09951±00720),
09950±70010 (09951±07150)
NOTICE:
If the inner race and balls come loose from the bearing out-
er race, make sure to install them on the same side as be-
fore.
(b) Using snap ring pliers, install a new snap ring.
2. INSTALL OIL SEAL
(a) Install the inner race (outside).
(b) Using SST and a hammer, install a new oil seal until it is
flush with the end surface of the steering knuckle.
SST 09608±32010
(c) Coat MP grease to the oil seal lip.
3. INSTALL AXLE HUB TO STEERING KNUCKLE
(a) Install the brake dust cover to the steering knuckle with
the 4 bolts.
Torque: 8.3 N´m (85 kgf´cm, 74 in.´lbf)
(b) Using SST and a press, install the axle hub to the steering
knuckle.
SST 09316±60011 (09316±00011, 09316±00071),
09608±32010
4. INSTALL ABS SPEED SENSOR ROTOR
NOTICE:
Do not scratch the serrations of the sensor rotor.
5. INSTALL AXLE HUB LOCK NUT
(a) Install a new axle hub lock nut.
Torque: 199 N´m (2,030 kgf´cm, 147 ft´lbf)
(b) Using a chisel and hammer, stake the lock nut.
6. INSTALL FRONT HUB GREASE CAP
Using a screwdriver and hammer, install the grease cap to the
steering knuckle.

SA0RA±01
F02311
R05811
SST
R05812
Washer SA±16
± SUSPENSION AND AXLEFRONT WHEEL HUB BOLT
2016 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FRONT WHEEL HUB BOLT
REPLACEMENT
1. REMOVE FRONT WHEEL
2. REMOVE BRAKE CALIPER AND DISC
(a) Remove the 2 bolts and remove the brake caliper from the
steering knuckle.
(b) Support the brake caliper securely.
(c) Remove the disc.
3. REMOVE HUB BOLT
Using SST, remove the hub bolt.
SST 09628±10011
4. INSTALL HUB BOLT
(a) Install a washer and nut to the bolt, as shown in the il-
lustration.
(b) Turn the wheel nut to pull the hub bolt until the underside
of the hub bolt head touches the axle hub.
5. INSTALL DISC AND BRAKE CALIPER
(a) Install the disc.
(b) Install the brake caliper and 2 bolts to the steering
knuckle.
Torque: 118 N´m (1,200 kgf´cm, 87 ft´lbf)
6. INSTALL FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)

SA0RC±01
F02311
F02313
SST
F02398
SA±18
± SUSPENSION AND AXLEFRONT SHOCK ABSORBER
2018 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE BRAKE CALIPER
(a) Remove the 2 bolts and caliper from the steering knuckle.
Torque: 118 N´m (1,200 kgf´cm, 87 ft´lbf)
(b) Support the brake caliper securely.
3. DISCONNECT ABS SPEED SENSOR AND WIRE
HARNESS
(a) Remove the bolt and ABS speed sensor.
Torque: 7.8 N´m (80 kgf´cm, 69 in.´lbf)
(b) Remove the bolt and ABS speed sensor wire harness.
Torque: 5.0 N´m (55 kgf´cm, 48 in.´lbf)
4. DISCONNECT UPPER SUSPENSION ARM FROM
STEERING KNUCKLE
(a) Remove the clip and nut.
Torque: 87 N´m (890 kgf´cm, 64 ft´lbf)
(b) Using SST, disconnect the upper suspension arm from
the steering knuckle.
SST 09610±20012
5. DISCONNECT STABILIZER BAR FROM STABILIZER
BAR LINK
Remove the bolt and nut, and disconnect the stabilizer bar from
the stabilizer bar link
Torque: 55 N´m (560 kgf´cm, 41 ft´lbf)

R07928
F04238
16 inch wheel
17 inch wheelApprox. 25 mm (0.984 in.)
Approx. 25 mm (0.984 in.)
R11097
± SUSPENSION AND AXLETIRE AND WHEEL
SA±3
2003 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
3. INSPECT WHEEL BALANCE
(a) Check and adjust the off±the±car balance.
(b) If necessary, check and adjust the on±the±car balance.
Unbalance after adjustment: 8.0 g (0.018 lb) or less
NOTICE:

Adhere the sticking type balance weight to the flat
position shown in the illustration.

Push the balance weight securely with a finger to ad-
here it to the position.
(Pushing force: 10 kgf/more than 2 secs.)

After cleaning the surface which the balance weight
will be adhered to of dirt, oil and water with a cleaning
detergent, adhere the balance weight to the surface.

Do not touch the sticking surface of the tape.

Do not use the once used balance weight.

Please use the TOYOTA genuine sticking type bal-
ance weight.
4. CHECK WHEEL BEARING LOOSENESS
(a) Check the backlash in the bearing shaft direction.
Maximum: 0.05 mm (0.0020 in.)
(b) Check the axle hub deviation.
Maximum: 0.05 mm (0.0020 in.)
5. CHECK FRONT SUSPENSION FOR LOOSENESS
6. CHECK STEERING LINKAGE FOR LOOSENESS
7. CHECK BALL JOINT FOR LOOSENESS AND
EXCESSIVE PLAY (See page SA±34)
8. CHECK SHOCK ABSORBER WORKS PROPERLY

Check for oil leak

Check mounting bushings for wear

Bounce front and rear of the vehicle

SA0RN±01
F02311
F02312
SST
F02317
F02318
SA±30
± SUSPENSION AND AXLEFRONT LOWER SUSPENSION ARM
2030 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE ENGINE UNDER COVERS
3. REMOVE BRAKE CALIPER
(a) Remove the 2 bolts and caliper.
Torque: 118 N´m (1,200 kgf´cm, 87 ft´lbf)
(b) Support the brake caliper securely.
(c) Remove the disc.
4. DISCONNECT TIE ROD END
(a) Remove the clip and nut.
Torque: 87 N´m (890 kgf´cm, 64 ft´lbf)
(b) Using SST, disconnect the tie rod end from the steering
knuckle.
SST 09610±20012
5. HID TYPE HEADLIGHT:
DISCONNECT HEIGHT CONTROL SENSOR LINK
FROM SHOCK ABSORBER BRACKET
Remove the nut and disconnect the height control sensor link
from the shock absorber bracket.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
6. REMOVE STABILIZER BAR LINK
(a) Remove the bolt and nut, disconnect the stabilizer bar link
from the stabilizer bar.
Torque: 55 N´m (560 kgf´cm, 43 ft´lbf)
(b) Remove the nut and stabilizer bar link.
Torque: 113 N´m (1,150 kgf´cm, 83 ft´lbf)

F02395
F02321
R05835SST
F03425
A
BA
F02322Matchmarks
± SUSPENSION AND AXLEFRONT LOWER SUSPENSION ARM
SA±31
2031 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
7. DISCONNECT SHOCK ABSORBER
Remove the bolt and nut, disconnect the shock absorber from
the shock absorber bracket.
Torque: 157 N´m (1,600 kgf´cm, 116 ft´lbf)
8. LOOSEN NO.1 AND NO.2 LOWER SUSPENSION ARM
SET BOLTS
Torque: 164 N´m (1,690 kgf´cm, 122 ft´lbf)
HINT:
At the time of installation, after stabilizing the suspension,
torque the bolts.
9. DISCONNECT NO.2 LOWER SUSPENSION ARM
(a) Remove the cotter pin and nuts.
Torque: 162 N´m (1,650 kgf´cm, 119 ft´lbf)
(b) Using SST, disconnect the No.2 lower suspension arm
from the lower ball joint.
SST 09628±62011
10. REMOVE STEERING GEAR ASSEMBLY
(See page SR±45)
11. REMOVE STRUT BAR BRACKET
Remove the nut, 2 bolts and strut bar bracket.
Torque:
A: 58 N´m (590 kgf´cm, 43 ft´lbf)
B: 152 N´m (1,550 kgf´cm, 112 ft´lbf)
12. REMOVE LOWER SUSPENSION ARM ASSEMBLY
(a) Place matchmarks on the camber adjusting cam and sus-
pension crossmember.
(b) Remove the bolt, nut and lower suspension arm assem-
bly.
Torque: 172 N´m (1,755 kgf´cm, 127 ft´lbf)
HINT:
At the time of installation, after stabilizing the suspension,
torque the nut.

SA0RR±01
F02311
W00285
SST
R05802
SST SA±36
± SUSPENSION AND AXLEFRONT LOWER BALL JOINT
2036 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE BRAKE CALIPER
(a) Remove the 2 bolts and caliper.
Torque: 118 N´m (1,200 kgf´cm, 87 ft´lbf)
(b) Support the brake caliper securely.
3. DISCONNECT TIE ROD END FROM LOWER BALL
JOINT
(a) Remove the clip and nut.
Torque: 87 N´m (890 kgf´cm, 64 ft´lbf)
(b) Using SST, disconnect the tie rod end from the lower ball
joint.
SST 09610±20012
4. DISCONNECT LOWER BALL JOINT FROM LOWER
SUSPENSION ARM
(a) Remove the cotter pin and nut.
Torque: 162 N´m (1,650 kgf´cm, 119 ft´lbf)
(b) Using SST, remove the lower ball joint.
SST 09628±62011
5. REMOVE LOWER BALL JOINT FROM STEERING
KNUCKLE
Remove the 2 bolts and lower ball joint.
Torque: 113 N´m (1,150 kgf´cm, 83 ft´lbf)

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.