ABS LEXUS GS400 2000 Service Workshop Manual

SA0RI±03
F02336
Suspension Support
No.1
Shock Absorber
With Coil Spring
Upper Suspension Arm
ABS Speed Sensor
Stabilizer BarO±Ring
7.8 (80, 69 in.´lbf)
87 (890, 64)
5.0 (55, 48 in.´lbf)
53 (540, 39)
Clip


: Specified torque

Non±reusable partN´m (kgf´cm, ft´lbf)
157 (1,600, 116)
55 (560, 43)
56 (570, 41)
± SUSPENSION AND AXLEFRONT UPPER SUSPENSION ARM
SA±25
2025 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FRONT UPPER SUSPENSION ARM
COMPONENTS

SA0RJ±01
F02316
SA±26
± SUSPENSION AND AXLEFRONT UPPER SUSPENSION ARM
2026 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 SHOCK ABSORBER
(See page SA±18)
3. REMOVE UPPER SUSPENSION ARM
Remove the 2 bolts and upper suspension arm.
Torque: 53 N´m (540 kgf´cm, 39 ft´lbf)
HINT:
At the time of installation, after stabilizing the suspension,
torque the bolts.

SA0RL±01
SA±28
± SUSPENSION AND AXLEFRONT UPPER SUSPENSION ARM
2028 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±26).
AFTER INSTALLATION, CHECK ABS SPEED SENSOR (See page DI±389) AND FRONT WHEEL
ALIGNMENT (See page SA±4)

SA0RM±01
F02337
HID Type Headlight:
Height Control Sensor LinkPS Gear
Assembly
Pressure Feed
and Return Tubes
Shock Absorber
Bracket
No.2 Lower Suspension Arm
Strut Bar Bracket
Brake Caliper
Stabilizer Bar Link No.1 Lower Suspension
Arm
Engine Under CoverDisc Clip

Gasket
5.4 (55, 48 in.´lbf)
59 (600, 44)
118 (1,200, 87)
: Specified torque

Non±reusable partN´m (kgf´cm, ft´lbf)
87 (890, 64)
172 (1,755, 127)

Cotter Pin55 (560, 43)
164 (1,690, 122)
162 (1,650, 119)
58 (590, 43)
152 (1,550, 112)
113 (1,150, 83)
35 (360, 26)
65 (660, 48)
Engine Under Cover
Rear RH
Engine Under Cover
Rear LH
157 (1,600, 116)
± SUSPENSION AND AXLEFRONT LOWER SUSPENSION ARM
SA±29
2029 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FRONT LOWER SUSPENSION ARM
COMPONENTS

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.

SA±32
± SUSPENSION AND AXLEFRONT LOWER SUSPENSION ARM
2032 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
13. REMOVE NO.1 AND NO.2 LOWER SUSPENSION
ARMS
(a) Remove the bolt, shock absorber bracket from the No.1
lower suspension arm.
Torque: 59 N´m (600 kgf´cm, 44 ft´lbf)
(b) Remove the 2 bolts and separate the No.1 and No.2 lower
suspension arms.

SA0RO±01
± SUSPENSION AND AXLEFRONT LOWER SUSPENSION ARM
SA±33
2033 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±30).
AFTER INSTALLATION, CHECK ABS SPEED SENSOR SIGNAL (See page DI±389) AND FRONT
WHEEL ALIGNMENT (See page SA±4)

SA0RY±01
F03420
Washer
Suspension Member BraceBrake Caliper
Axle Carrier Assembly
Parking Brake
Cable
Parking Brake
Backing Plate Dust Deflector
Axle CarrierHub Bolt
Axle Hub
Snap Ring Disc
Lock Cap
289 (2,950, 213)
59 (600, 44)
75 (765, 55)
108 (1,100, 80)
104 (1,065, 77)Drive Shaft X6

Cotter Pin

Bearing
N´m (kgf´cm, ft´lbf): Specified torque

Non±reusable part
50 (510, 37)
83 (850, 61)
110 (1,120, 81)
7.8 (80, 69 in.´lbf)
7.8 (80, 69 in.´lbf)
59 (600, 43)
ABS Speed Sensor
± SUSPENSION AND AXLEREAR AXLE CARRIER
SA±43
2043 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REAR AXLE CARRIER
COMPONENTS

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)