2000 LEXUS GS400 wheel alignment

SS0FD±01
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
SS±49
205 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SUSPENSION AND AXLE
SERVICE DATA
Cold tire inflation
pressure
(GS 400)
Tire size
225/55R16 94V *1Front
*1Rear
*2Front
*2Rear
235/45ZR17 *1Front
*1Rear
*2Front
*2Rear
220 kPa (2.2 kgf/cm2
or bar, 32 psi)
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
290 kPa (2.9 kgf/cm2 or bar, 42 psi)
290 kPa (2.9 kgf/cm2 or bar, 42 psi)
230 kPa (2.3 kgf/cm2 or bar, 33 psi)
230 kPa (2.3 kgf/cm2 or bar, 33 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
Cold tire inflation
pressure
(GS 300)
Tire size
P215/60R16 94V *1Front
*1Rear
*2Front
*2Rear
225/55R16 94V *1Front
*1Rear
*2Front
*2Rear
210 kPa (2.1 kgf/cm2 or bar, 30 psi)
210 kPa (2.1 kgf/cm2 or bar, 30 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
300 kPa (3.0 kgf/cm2 or bar, 44 psi)
Vehicle height
P215/60R16 *3Front
*4Rear
225/55R16 *3Front
*4Rear
235/45ZR17 *3Front
*4Rear
243 mm (9.63 in.)
226 mm (8.90 in.)
240 mm (9.45 in.)
221 mm (8.70 in.)
238 mm (9.37 in.)
219 mm (8.62 in.)
Camber
Left±right error±0°16' ± 30' (±0.27° ± 0.5°)
30' (0.5°) or less
Front wheel
alignmentCaster
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
Toe±in (total)
Rack end length difference0°09' ± 12' (0.15° ± 0.2°, 1.5 ± 2 mm, 0.06 ± 0.08 in.)
1.5 mm (0.059 in.) or less
Wheel angle Inside wheel
Outside wheel: Reference38°51' (36°51' - 39°51')
38.85° (36.85° - 39.85°)
32°05'
32.08°
Rear wheel
Camber
Left±right error±0°47' ± 30' (±0.78° ± 0.5°)
30' (0.5°) or less
Rear wheel
alignment
Toe±in (total)
Link and arm length difference0°08' ± 12' (0.13° ± 0.2°, 1.4 ± 2 mm, 0.056 ± 0.08 in.)
4.0 mm (0.16 in.) or less
FtlWheel bearing backlash0.05 mm (0.0020 in.)Front axleAxle hub deviation0.05 mm (0.0020 in.)
*1: For driving under 160 km/h (100 mph)
*
2: For driving at 160 km/h (100 mph) or over
*
3: Measure from the ground to the center of the lower suspension arm mounting bolt.
*
4: Measure from the ground to the center of the No.2 lower suspension arm mounting bolt.

SR0DF±03
SR±2
± STEERINGTROUBLESHOOTING
2172 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in the order shown. If necessary, repair or replace these parts.
SymptomSuspect AreaSee page
Hard steering
3. Tires (Improperly inflated)
4. Power steering fluid level (Low)
5. Drive belt (Loose)
6. Front wheel alignment (Incorrect)
7. Steering system joints (Worn)
8. Suspension arm ball joints (Worn)
9. Steering column (Binding)
10.Power steering gear
11. PPS systemSA±2
SR±4
±
SA±4
±
SA±27
SA±37
±
SR±42
SR±59
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Power steering gearSA±2
SA±4
±
SR±42
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (Worn)
3. Intermediate shaft, Universal joint, Sliding yoke (Worn)
4. Front wheel bearing (Worn)
5. Power steering gear
6. PPS system±
SA±27
SA±37
±
SA±10
SR±42
SR±59
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Power steering gearSR±4
±
SR±42
HINT:
When the problem occurs on the power tilt and telescopic steering system, refer to the DI section.
(See page DI±517)

SR0E7±01
F02565
± STEERINGPOWER STEERING GEAR
SR±57
2227 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
1. INSTALL GROMMET AND BRACKET
2. INSTALL PS GEAR ASSEMBLY
(a) Torque the 4 gear assembly set bolts.
Torque: 65 N´m (660 kgf´cm, 48 ft´lbf)
(b) Connect the connector.
3. 2JZ±GE Engine:
CONNECT TUBE CLAMP
Torque the bolt.
Torque: 5 N´m (55 kgf´cm, 48 in.´lbf)
4. 1UZ±FE Engine:
CONNECT 2 TUBE CLAMPS
Torque the bolt.
Torque: 5 N´m (55 kgf´cm, 48 in.´lbf)
5. CONNECT INTERMEDIATE SHAFT ASSEMBLY
(See page SR±17)
6. CONNECT PRESSURE FEED AND RETURN TUBES
(a) Pressure feed tube:
Torque the union bolt over a new gaskets.
Torque: 42 N´m (430 kgf´cm, 31 ft´lbf)
(b) Return tube:
Torque the union bolt with a new gasket on each side of
the tube.
Torque: 42 N´m (430 kgf´cm, 31 ft´lbf)
7. CONNECT RH AND LH TIE ROD ENDS
(See page SA±9)
8. POSITION FRONT WHEELS FACING STRAIGHT
AHEAD
HINT:
Do it with the front of the vehicle jacked up.
9. CENTER SPIRAL CABLE
(See page SR±17)
10. INSTALL STEERING WHEEL
(a) Align the matchmarks on the wheel and steering column
main shaft.
(b) Temporarily tighten the wheel set nut.
(c) Connect the connector.
11. BLEED POWER STEERING SYSTEM
(See page SR±3)
12. CHECK STEERING WHEEL CENTER POINT
13. TORQUE STEERING WHEEL SET NUT
Torque: 35 N´m (360 kgf´cm, 26 ft´lbf)
14. INSTALL STEERING WHEEL PAD
(See page SR±17)
15. CHECK FRONT WHEEL ALIGNMENT
(See page SA±4)

SA0R1±03
± SUSPENSION AND AXLETROUBLESHOOTING
SA±1
2001 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
Wander/pulls
5. Tires (Worn or improperly inflated)
6. Wheel alignment (Incorrect)
7. Steering linkage (Loosen or worn)
8. Hub bearings (Loosen or worn)
9. Steering gear (Out of adjustment or broken)
10.Suspension parts (Worn out)SA±2
SA±4
SA±7
±
SA±9
SA±43
±
±
Bottoming
1. Vehicle (Overloaded)
2. Spring (Weak)
3. Shock absorber (Worn out)±
SA±17
SA±86
SA±21
SA±89
Sways/pitches
1. Tires (Worn or improperly inflated)
2. Stabilizer bar (Bent or broken)
3. Shock absorber (Worn out)SA±2
SA±39
SA±105
SA±21
SA±89
Front wheel shimmy
1. Tires (Worn or improperly inflated)
2. Wheels (Out of balance)
3. Shock absorber (Worn out)
4. Wheel alignment (Incorrect)
5. Ball joints (Worn)
6. Hub bearings (Loosen or worn)
7. Steering linkage (Loosen or worn)
8. Steering gear (Out of adjustment or broken)SA±2
SA±2
SA±21
SA±4
SA±34
SA±9
±
±
Abnormal tire wear
1. Tires (Improperly inflated)
2. Wheel alignment (Incorrect)
3. Suspension parts (Worn out)
4. Shock absorber (Worn out)SA±2
SA±4
SA±7
±
SA±21
SA±89
Noise in rear differential
1. Oil level (Low or wrong grade)
2. Excessive backlash between pinion and ring gear
3. Ring, pinion or side gears (Worn or chipped)
4. Pinion shaft bearing (Worn)
5. Side bearing (Worn)SA±61
SA±63
SA±63
SA±63
SA±63
Oil leak from rear differential
1. Oil level (Too high or wrong grade)
2. Drive pinion oil seal (Worn or damaged)
3. Side gear oil seal (Worn or damaged)
4. Companion flange (Loose or damaged)
5. Side gear shaft (Damaged)SA±61
SA±63
SA±60
SA±67
SA±63

SA0SV±01
SA±100
± SUSPENSION AND AXLEREAR LOWER SUSPENSION ARM
2100 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±98).
AFTER INSTALLATION, CHECK REAR WHEEL ALIGNMENT (See page SA±7)

SA0SZ±01
SA±104
± SUSPENSION AND AXLETOE CONTROL LINK
2104 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±102).
AFTER INSTALLATION, CHECK REAR WHEEL ALIGNMENT (See page SA±7)

SA0R9±01
± SUSPENSION AND AXLEFRONT AXLE HUB
SA±15
2015 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±10).
AFTER INSTALLATION, CHECK ABS SPEED SENSOR SIGNAL (See page DI±389) AND FRONT
WHEEL ALIGNMENT (See page SA±4)

SA0RH±01
SA±24
± SUSPENSION AND AXLEFRONT SHOCK ABSORBER
2024 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order or removal (See page SA±18).
AFTER INSTALLATION, CHECK ABS SPEED SENSOR SIGNAL (See page DI±389) AND FRONT
WHEEL ALIGNMENT (See page SA±4)