differential LEXUS GS400 2000 Service Owner's Manual

SS0C5±02
SS±42
± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
198 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
AUTOMATIC TRANSMISSION
SERVICE DATA
Line pressure (Wheel locked)
Idling
D position
R position
Stall
D position
R position
395 ± 455 kPa (4.0 ± 4.6 kgf´cm2, 57 ± 65 psi)
0
1,200 ± 1,360 kPa (12.2 ± 13.8 kgf´cm
2, 174 ± 196 psi)
1,655 ± 1,960 kPa (16.9 ± 19.8 kgf´cm2, 240 ± 282 psi)
Engine stall revolution (D position)
1UZ±FE
2JZ±GE
2,250 ± 150 rpm
2,700 ± 150 rpm
Time lag N " D position
N " R positionLess than 1.2 seconds
Less than 1.5 seconds
Engine idle speed (N position and A/C OFF)
1UZ±FE
2JZ±GE
750 ± 50 rpm
700 ± 50 rpm
Drive plate runoutMax.
Torque converter clutch sleeve runout Max.
Torque converter clutch installation (Correct distance) 1UZ±FE
2JZ±GE0.20 mm (0.0079 in.)
0.30 mm (0.0118 in.)
More than 17.1 mm (0.673 in.)
More than 0.1 mm (0.004 in.)
Extension housing oil seal drive in depth from flat end2.0 mm (0.079 in.)
Shift schedule (1UZ±FE / NORM and PWR mode)
Differential gear ratio 3.266
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
63 ± 73 km/h (39 ± 45 mph)
93 ± 105 km/h (58 ± 65 mph)
143 ± 161 km/h (89 ± 100 mph)
209 ± 230 km/h (130 ± 143 mph)
202 ± 218 km/h (126 ± 135 mph)
135 ± 148 km/h (84 ± 92 mph)
79 ± 87 km/h (49 ± 54 mph)
42 ± 49 km/h (26 ± 30 mph)
33 ± 39 km/h (21 ± 24 mph)
24 ± 30 km/h (15 ± 19 mph)
63 ± 73 km/h (39 ± 45 mph)
93 ± 105 km/h (58 ± 65 mph)
152 ± 167 km/h (94 ± 104 mph)
79 ± 87 km/h (49 ± 54 mph)
42 ± 49 km/h (26 ± 30 mph)
63 ± 73 km/h (39 ± 45 mph)
103 ± 111 km/h (64 ± 69 mph)
42 ± 49 km/h (26 ± 30 mph)
17 ± 23 km/h (11 ± 14 mph)

± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
SS±43
199 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Shift schedule (1UZ±FE / SNOW mode)
Differential gear ratio 3.266
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
42 ± 56 km/h (26 ± 35 mph)
72 ± 89 km/h (45 ± 55 mph)
109 ± 135 km/h (68 ± 84 mph)
145 ± 174 km/h (90 ± 108 mph)
96 ± 119 km/h (60 ± 74 mph)
47 ± 64 km/h (29 ± 40 mph)
22 ± 32 km/h (17 ± 20 mph)
5 ± 10 km/h (3 ± 6 mph)
33 ± 39 km/h (21 ± 24 mph)
24 ± 30 km/h (15 ± 19 mph)
42 ± 56 km/h (26 ± 35 mph)
72 ± 89 km/h (45 ± 55 mph)
152 ± 167 km/h (94 ± 104 mph)
22 ± 32 km/h (17 ± 20 mph)
5 ± 10 km/h (3 ± 6 mph)
42 ± 56 km/h (26 ± 35 mph)
103 ± 111 km/h (64 ± 69 mph)
5 ± 10 km/h (3 ± 6 mph)
17 ± 23 km/h (11 ± 14 mph)
Shift schedule (2JZ±GE / NORM and PWR mode)
Differential gear ratio 3.916
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
53 ± 61 km/h (33 ± 38 mph)
81 ± 91 km/h (50 ± 57 mph)
124 ± 138 km/h (77 ± 86 mph)
177 ± 191 km/h (110 ± 119 mph)
171 ± 182 km/h (106 ± 113 mph)
112 ± 122 km/h (70 ± 76 mph)
63 ± 68 km/h (39 ± 42 mph)
34 ± 39 km/h (21 ± 24 mph)
39 ± 44 km/h (24 ± 27 mph)
22 ± 27 km/h (14 ± 17 mph)
53 ± 61 km/h (33 ± 38 mph)
81 ± 91 km/h (50 ± 57 mph)
129 ± 139 km/h (80 ± 86 mph)
63 ± 68 km/h (39 ± 42 mph)
34 ± 39 km/h (21 ± 24 mph)
53 ± 61 km/h (33 ± 38 mph)
87 ± 93 km/h (54 ± 58 mph)
34 ± 39 km/h (21 ± 24 mph)
16 ± 21 km/h (10 ± 13 mph)

SS±44
± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
200 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Shift schedule (2JZ±GE / SNOW mode)
Differential gear ratio 3.916
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
39 ± 50 km/h (24 ± 31 mph)
62 ± 74 km/h (39 ± 46 mph)
94 ± 112 km/h (58 ± 70 mph)
136 ± 157 km/h (85 ± 98 mph)
77 ± 91 km/h (48 ± 57 mph)
45 ± 55 km/h (28 ± 34 mph)
23 ± 31 km/h (14 ± 19 mph)
4 ± 8 km/h (2 ± 5 mph)
39 ± 44 km/h (24 ± 27 mph)
22 ± 27 km/h (14 ± 17 mph)
39 ± 50 km/h (24 ± 31 mph)
62 ± 74 km/h (39 ± 46 mph)
129 ± 139 km/h (80 ± 86 mph)
23 ± 31 km/h (14 ± 19 mph)
4 ± 8 km/h (2 ± 5 mph)
39 ± 50 km/h (24 ± 31 mph)
87 ± 93 km/h (54 ± 58 mph)
4 ± 8 km/h (2 ± 5 mph)
16 ± 21 km/h (10 ± 13 mph)
Lock±up point (1UZ±FE) (Throttle valve opening 5 %)
5th gear (D position) Lock±up ON
Lock±up OFF
4th gear (4 position) Lock±up ON
Lock±up OFF
58 ± 65 km/h (36 ± 40 mph)
55 ± 61 km/h (34 ± 38 mph)
140 ± 150 km/h (87 ± 93 mph)
133 ± 143 km/h (83 ± 89 mph)
Flex lock±up point (1UZ±FE) (Throttle valve opening 3 %)
D position (When accelerating) Lock±up ON
Lock±up OFF
4 position (When accelerating) Lock±up ON
Lock±up OFF
47 ± 53 km/h (29 ± 33 mph)
45 ± 51 km/h (28 ± 32 mph)
35 ± 41 km/h (22 ± 25 mph)
33 ± 39 km/h (21 ± 24 mph)
Lock±up point (2JZ±GE) (Throttle valve opening 5 %)
5th gear (D position) Lock±up ON
Lock±up OFF
4th gear (4 position) Lock±up ON
Lock±up OFF
56 ± 61 km/h (35 ± 38 mph)
54 ± 60 km/h (34 ± 37 mph)
56 ± 61 km/h (35 ± 38 mph)
54 ± 60 km/h (34 ± 37 mph)

SS0F8±01
SS±48
± SERVICE SPECIFICATIONSPROPELLER SHAFT
204 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Intermediate shaft x Transmission7980558
Propeller shaft x Differential7980558
Heat insulator x Body5.45548 in.´lbf
Exhaust pipe assembly x Exhaust manifold4445033
Front floor center brace x Body7.47565 in.´lbf
Heated oxygen sensor x Exhaust pipe assembly4445033
Center support bearing x Body3737527
Propeller shaft adjusting nut50 (69)515 (700)37 (51)
( ): For use without SST

SS±50
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
206 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
Upper ball joint turning torque1.0 ± 3.4 N´m (10 ± 35 kgf´cm, 9 ± 30 in.´lbf)
Ft iLower ball joint turning torque0.1 ± 2.0 N´m (1 ± 20 kgf´cm, 0.9 ± 17 in.´lbf)Front suspensionLower ball joint excessive play0.9 mm (0.035 in.)
Stabilizer bar link ball joint turning torque0.05 ± 1.5 N´m (0.5 ± 15 kgf´cm, 0.4 ± 13 in.´lbf)
RlWheel bearing backlash0.05 mm (0.0020 in.)Rear axleAxle hub deviation0.07 mm (0.0028 in.)
Rear drive shaftDrive shaft length RH
LH598.5 mm (23.563 in.)
553.5 mm (21.791 in.)
Upper ball joint turning torque1.0 ± 3.4 N´m (10 ± 35 kgf´cm, 9 ± 30 in.´lbf)
Rear suspensionToe control link ball joint turning torque1.0 ± 2.5 N´m (10 ± 25 kgf´cm, 9 ± 22 in.´lbf)Rear sus ension
Stabilizer bar link ball joint turning torque0.05 ± 1.0 N´m (0.5 ± 10 kgf´cm, 0.4 ± 9 in.´lbf)
Drive pinion shaft runout Maximum0.08 mm (0.0031 in.)
Ring gear runout Maximum0.05 mm (0.0020 in.)
Ring gear backlash Maximum0.08 ± 0.13 mm (0.0031 ± 0.0051 in.)
Drive pinion bearing (at starting) New bearing
Reused bearing1.5 ± 1.8 N´m (15 ± 18 kgf´cm, 13.0 ± 15.6 in.´lbf)
0.5 ± 0.8 N´m (5 ± 8 kgf´cm, 4.3 ± 6.9 in.´lbf)
Total preload (at starting)Drive pinion preload plus
0.5 ± 0.8 N´m (5 ± 8 kgf´cm, 4.3 ± 6.9 in.´lbf)
Rear differentialPinion gear backlash Maximum0.15 mm (0.0059 in.)Rear differential
Pinion gear backlash adjusting thrust washer
1.50 mm (0.059 in.)
1.55 mm (0.061 in.)
1.60 mm (0.063 in.)
1.65 mm (0.065 in.)
1.70 mm (0.067 in.)
1.75 mm (0.069 in.)
1.80 mm (0.071 in.)
1.85 mm (0.073 in.)
1.90 mm (0.075 in.)

± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
SS±51
207 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Rear differential
(cont'd)
Ring gear backlash adjusting washer No.
02
04
06
08
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
2.02 mm (0.0795 in.)
2.04 mm (0.0803 in.)
2.06 mm (0.0811 in.)
2.08 mm (0.0819 in.)
2.10 mm (0.0827 in.)
2.12 mm (0.0835 in.)
2.14 mm (0.0843 in.)
2.16 mm (0.0850 in.)
2.18 mm (0.0858 in.)
2.20 mm (0.0866 in.)
2.22 mm (0.0874 in.)
2.24 mm (0.0882 in.)
2.26 mm (0.0890 in.)
2.28 mm (0.0898 in.)
2.30 mm (0.0906 in.)
2.32 mm (0.0913 in.)
2.34 mm (0.0921 in.)
2.36 mm (0.0929 in.)
2.38 mm (0.0937 in.)
2.40 mm (0.0945 in.)
2.42 mm (0.0953 in.)
2.44 mm (0.0961 in.)
2.46 mm (0.0969 in.)
2.48 mm (0.0976 in.)
2.50 mm (0.0984 in.)
2.52 mm (0.0992 in.)
2.54 mm (0.1000 in.)
2.56 mm (0.1008 in.)
2.58 mm (0.1016 in.)
2.60 mm (0.1024 in.)
2.62 mm (0.1031 in.)
2.64 mm (0.1039 in.)
2.66 mm (0.1047 in.)
2.68 mm (0.1055 in.)
2.70 mm (0.1063 in.)
2.72 mm (0.1071 in.)
2.74 mm (0.1079 in.)
2.76 mm (0.1087 in.)
2.78 mm (0.1094 in.)
2.80 mm (0.1102 in.)
2.82 mm (0.1100 in.)
2.84 mm (0.1118 in.)
2.86 mm (0.1126 in.)

SS±52
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
208 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Rear differential
(cont'd)
Tooth contact pattern adjusting washer No.
87
88
89
90
91
92
93
94
95
96
97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1.87 mm (0.0736 in.)
1.88 mm (0.0740 in.)
1.89 mm (0.0744 in.)
1.90 mm (0.0748 in.)
1.91 mm (0.0752 in.)
1.92 mm (0.0756 in.)
1.93 mm (0.0760 in.)
1.94 mm (0.0764 in.)
1.95 mm (0.0768 in.)
1.96 mm (0.0772 in.)
1.97 mm (0.0776 in.)
1.98 mm (0.0780 in.)
1.99 mm (0.0784 in.)
2.00 mm (0.0788 in.)
2.01 mm (0.0791 in.)
2.02 mm (0.0795 in.)
2.03 mm (0.0799 in.)
2.04 mm (0.0803 in.)
2.05 mm (0.0807 in.)
2.06 mm (0.0811 in.)
2.07 mm (0.0815 in.)
2.08 mm (0.0819 in.)
2.09 mm (0.0823 in.)
2.10 mm (0.0827 in.)
2.11 mm (0.0831 in.)
2.12 mm (0.0835 in.)
2.13 mm (0.0839 in.)
2.14 mm (0.0843 in.)
2.15 mm (0.0846 in.)
2.16 mm (0.0850 in.)
2.17 mm (0.0854 in.)
2.18 mm (0.0858 in.)
2.19 mm (0.0862 in.)
2.20 mm (0.0866 in.)
2.21 mm (0.0870 in.)
2.22 mm (0.0874 in.)
2.23 mm (0.0878 in.)
2.24 mm (0.0882 in.)
2.25 mm (0.0886 in.)
2.26 mm (0.0890 in.)
2.27 mm (0.0894 in.)
2.28 mm (0.0898 in.)

SS±54
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
210 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)Part tighten
N´mkgf´cmft´lbf
REAR
Hub nut1031,05076
Brake caliper x Axle carrier1041,06577
Axle carrier x Upper suspension arm1081,10080
Backing plate x Axle carrier5960043
Drive shaft x Axle hub2892,950213
No.2 lower suspension arm x Axle carrier11 01,12081
No.1 lower suspension arm x Axle carrier7576555
Drive shaft x Differential side gear shaft6869550
Differential drain plug4950039
Differential filler plug4950039
Differential mounting boltFront
Rear123
1421,250
1,45090
105
Ring gear set boltSee page SA±73
Companion flange lock nutSee page SA±73
Differential carrier retainer set bolt2222516
Differential carrier cover set bolt4747534
Breather plug2121015
Suspension support x Body Upper side
Lower side64
18650
18547
13
Piston rod x Suspension support2728020
Upper suspension arm x Body8890065
No.1 lower suspension arm x Body7576555
No.2 lower suspension arm x Stabilizer bar link x Height control sensor link3030522
No.2 lower suspension arm x Shock absorber11 01,12081
No.2 lower suspension arm x Body11 01,12081
ABS speed sensor wire harness x Toe control link5.45548 in.´lbf
Toe control link x Axle carrier5960044
Toe control link x Body5960044
Stabilizer bar x Stabilizer bar link6566048
Stabilizer bar bracket x Body1818513
ABS speed sensor x Axle carrier7.88069 in.´lbf
Parking brake cable x Backing plate7.88069 in.´lbf
Suspension member brace x Body5051037
Differential x Propeller shaft7980558
Oil deflector x Differential carrier cover7.07062 in.´lbf

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

SA0S9±01
F03422
Suspension Member Brace Differential Side Gear ShiftDrive Shaft Washer
 Cotter Pin  Snap Ring
 Oil Seal
6
83 (850, 61)
78 (765, 55)
110 (1,120, 81)
Lock Cap
Non±reusable part: Specified torque
N´m (kgf´cm, ft´lbf)
50 (510, 37)
289 (2,950, 213)
SA±60
± SUSPENSION AND AXLEREAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
2060 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
COMPONENTS