LEXUS GS400 2000 Service Repair Manual

R06938
SSTClearance
R08199
R07026
SA±58
± SUSPENSION AND AXLEREAR DRIVE SHAFT
2058 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(d) Using SST, adjust the clearance of the clamp.
SST 09240±00020 (09242±00080)
Clearance: 0.8 mm (0.031 in.) or less
(e) The drive shaft is designed to move ±20 mm (0.79 in.)
from the normal position.
Drive shaft standard length:
RH598.5 mm (23.563 in.)
LH553.5 mm (21.791 in.)
8. INSTALL NEW END COVER
(a) Pack grease into the end cover.
Grease capacity50 ± 55 g (1.8 ±1.9 oz.)
(b) Remove grease from the surface of the inboard joint fac-
ing to the cover.
(c) Glue on a new gasket, with the glued side facing toward
the outer race side of the inboard joint.
(d) Align the bolt holes of the cover with those of the inboard
joint.
(e) Install the 6 hexagon bolts and washers from the end cov-
er side.
(f) Install the 6 nuts to the boot side.
(g) Using a 10 mm hexagon wrench, tighten the bolts. Do this
in the order shown, and repeat several times.
(h) Check that the claw of the end cover touches the inboard
joint.
9. CHECK DRIVE SHAFT (See page SA±54)

SA0S8±01
± SUSPENSION AND AXLEREAR DRIVE SHAFT
SA±59
2059 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSTALLATION
Installation is in the reverse order of removal (See page SA±52).
AFTER INSTALLATION, CHECK ABS SPEED SENSOR SIGNAL (See page DI±389)

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

SA0SA±01
F02403
SST
F02404
SST
F02405
SST
F03419
± SUSPENSION AND AXLEREAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
SA±61
2061 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REPLACEMENT
1. DRAIN DIFFERENTIAL OIL
2. REMOVE DRIVE SHAFT (See page SA±52)
3. REMOVE SIDE GEAR SHAFT
(a) Using SST and 2 bolts, remove the side gear shaft.
SST 09520±24010
(b) Remove the snap ring from the side gear shaft.
4. REMOVE SIDE GEAR SHAFT OIL SEAL
Using SST, remove the oil seal.
SST 09308±00010
5. INSTALL SIDE GEAR SHAFT OIL SEAL
(a) Using SST and a hammer, install a new oil seal.
SST 09608±32010, 09950±70010 (09951±07150)
(b) Apply MP grease to the oil seal lip.
6. INSTALL SIDE GEAR SHAFT
(a) Install a new snap ring to the side gear shaft.
(b) Using a brass bar and hammer, install the side gear shaft
to the differential.
NOTICE:
Be careful not to damage the side gear shaft and oil seal.
7. CHECK INSTALLATION OF SIDE GEAR SHAFT
(a) Check that there is 2 ± 3 mm (0.08 ± 0.12 in.) of play in
the axial direction.
(b) Check that the side gear shaft will not come out by trying
to pulling it out by hand.
8. INSTALL DRIVE SHAFT (See page SA±59)

R08549
Less than 5 mm (0.20 in.) SA±62
± SUSPENSION AND AXLEREAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
2062 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
9. FILL AND CHECK DIFFERENTIAL OIL LEVEL
Torque: 49 N´m (500 kgf´cm, 39 ft´lbf)
Oil grade: Hypoid gear oil API GL±5
Viscosity:
Above ±18°C (0°F) SAE 90
Below ±18°C (0°F) SAE 80W±90 or 80W
Capacity: 1.35 liters (1.43 US qts, 1.19 lmp qts)

SA0SB±03
37 (375, 27)
F03423
142 (1,450, 105)
110 (1,120, 80)
123 (1,250, 90)
7.4 (75, 65 in.´lbf)
Upper Mount Stopper
Differential
Washer
Lower Mount Stopper
Suspension Member Brace
Propeller Shaft
Heat Insulator
Front Floor Center Brace Heat Insulator
6
: Specified torque
 Non±reusable part
6
N´m (kgf´cm, ft´lbf)
83 (850, 61)
50 (510, 37)
75 (765, 55)
79 (805, 58)
79 (805, 58)
5.4 (55, 48 in.´lbf)
Exhaust Pipe
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
SA±63
2063 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REAR DIFFERENTIAL CARRIER
COMPONENTS

F01950
N´m (kgf´cm, ft´lbf) : Specified torque
 Non±reusable part Gasket
Pinion Gear Shaft
Thrust Washer
Pinion Gear
Straight Pin
Side Gear
Thrust Washer

See page SA±73
X10
 Adjusting Washer
Outer Race
Drive Pinion Rear Bearing
Drive Pinion
Ring Gear
Differential CaseSide Bearing
Outer Race
Side Bearing
Drain Plug
49 (500, 39)
Breather Plug
21 (210, 15)
X8
47 (475, 34)
Differential
Carrier Cover49 (500, 39)
X8
Filler Plug
 Gasket

Companion Flange
 Dust Deflector
 Oil Seal
Drive Pinion Front BearingOuter Race
 Spacer
Adjust Plate
Washer
 O±Ring
Differential Carrier Retainer
X8
22 (225, 16)
 Oil Seal
 Dust Cover
 Snap Ring
Side Gear Shaft

Precoated part
See page SA±73
Oil SlingerOil Deflector
7.0 (70, 62 in.´lbf)
SA±64
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
2064 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

SA0SC±01
F02394
Matchmarks
F03449
Matchmarks
F02353
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
SA±65
2065 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE EXHAUST PIPE
(See page EM±97 or EM±120)
2. REMOVE PROPELLER SHAFT (See page PR±4)
3. DISCONNECT REAR DRIVE SHAFTS
(a) Place matchmarks on the adjusting cam and lower sus-
pension arm.
(b) Remove the bolt and nut, disconnect the No.2 lower sus-
pension arm from the axle hub.
Torque: 110 N´m (1,120 kgf´cm, 81 ft´lbf)
(c) Remove the bolt and nut, disconnect the No.1 lower sus-
pension arm from the axle hub.
Torque: 75 N´m (765 kgf´cm, 55 ft´lbf)
(d) Place matchmarks on the 2 drive shafts and side gear
shafts.
NOTICE:
Do not punch to mark the matchmarks. Use paint etc.
(e) Using a 10 mm hexagon wrench, remove the 6 hexagon
bolts and 2 washers with depressing the brake pedal.
Torque: 83 N´m (850 kgf´cm, 61 ft´lbf)
HINT:
At the time of installation, apply a light coat of engine oil on the
threads of the bolts.
(f) Disconnect the drive shafts from the differential carrier.
4. REMOVE DIFFERENTIAL
(a) Support the differential carrier with a jack.
(b) Using a 12 mm hexagon wrench, remove the 3 hexagon
bolts
Torque: 142 N´m (1,450 kgf´cm, 105 ft´lbf)
(c) Remove the 2 bolts and lower mount stoppers.
Torque: 123 N´m (1,250 kgf´cm, 90 ft´lbf)
(d) Remove the differential.

R08499
SA±66
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
2066 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(e) Remove the 2 upper mount stoppers from the differential
carrier.

SA0SD±04
R00029
R00046
10 mm
(0.39 in.)
R00028
R00027
± SUSPENSION AND AXLEREAR DIFFERENTIAL CARRIER
SA±67
2067 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
DISASSEMBLY
1. REMOVE DIFFERENTIAL CARRIER COVER
(a) Remove the 8 bolts from the carrier cover.
(b) Using a brass bar and hammer, separate the cover from
carrier.
(c) Remove the breather plug from the differential carrier cov-
er.
2. SET DIFFERENTIAL CARRIER TO OVERHAUL STAND
ETC., AS SHOWN
3. CHECK RUNOUT OF DRIVE PINION SHAFT
Using a dial indicator, measure the runout of the drive pinion
shaft at a position 10 mm (0.39 in.) away from the end of the
shaft.
Maximum runout: 0.08 mm (0.0031 in.)
If the runout is greater than the maximum, replace the drive pin-
ion and ring gear.
4. CHECK RING GEAR RUNOUT
Using a dial indicator, measure the ring gear runout.
Maximum runout: 0.05 mm (0.0020 in.)
If the runout is greater than the maximum, replace the drive pin-
ion, ring gear and differential case.
5. CHECK RING GEAR BACKLASH
Using a dial indicator, measure the backlash of the ring gear at
3 points at least and check that the average value is within the
specification.
Backlash: 0.08 ± 0.13 mm (0.0031 ± 0.0051 in.)
NOTICE:
The difference between the maximum and minimum mea-
sured values must be less than 0.05 mm (0.0020 in.).
If the backlash is not within the specification, adjust the back-
lash (See page SA±73).