2000 LEXUS GS400 ECU

SA0R6±01
F02311
R11097
F02313
SST
SA±10
± SUSPENSION AND AXLEFRONT AXLE HUB
2010 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 FRONT BRAKE CALIPER AND DISC
(a) Remove the 2 bolts and brake caliper from the steering
knuckle.
Torque: 118 N´m (1,200 kgf´cm, 87 ft´lbf)
(b) Support the brake caliper securely.
(c) Remove the disc.
3. CHECK BEARING BACKLASH AND AXLE HUB
DEVIATION
(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 blacklash exceeds the maximum, replace the bearing.
(b) Using a dial indicator, check the deviation at the surface
of the axle hub outside the hub bolt.
Maximum: 0.05 mm (0.0020 in.)
If the deviation exceeds the maximum, replace the axle hub.
4. REMOVE ABS SPEED SENSOR
Remove the bolt and ABS speed sensor.
Torque: 7.8 N´m (80 kgf´cm, 69 in.´lbf)
5. REMOVE STEERING KNUCKLE
(a) Remove the upper side of the clip and nut.
Torque: 87 N´m (890 kgf´cm, 64 ft´lbf)
(b) Using SST, remove the steering knuckle from the upper
suspension arm.
SST 09610±20012

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)

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)

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)