Lexus GS300/400 (2000 year). Service manual — part 271

R00054

SST

R00054

SST

R00243

SST

R00047

SST

SA–68

–

SUSPENSION AND AXLE

REAR DIFFERENTIAL CARRIER

2068

6.

MEASURE DRIVE PINION PRELOAD

Using SST and a torque wrench, measure the preload using the
backlash of the drive pinion and ring gear.

Preload (at starting):
0.5 – 0.8 N·m (5 – 8 kgf·cm, 4.3 – 6.9 in.·lbf)

HINT:
For vehicles which have run less than 8,000 km (5,000 miles),
the preload may be large.

SST

09229–55010

Maximum preload (at starting):
1.8 N·m (18 kgf·cm, 16.0 in.·lbf)

7.

CHECK TOTAL PRELOAD

Using SST and a torque wrench, measure the preload with the
teeth of the drive pinion and ring gear in contact.

SST

09229–55010

Total preload (at starting):
Drive pinion preload plus
0.5 – 0.8 N·m (5 – 8 kgf·cm, 4.3 – 6.9 in.·lbf)

If necessary, disassemble and inspect the differential.

8.

CHECK PINION GEAR BACKLASH

Using a dial indicator, measure the pinion gear backlash with
holding one side gear toward the case.

Maximum: 0.15 mm (0.0059 in.)

NOTICE:
Differential gears should be able to rotate.
If the backlash is not within the specification, install the correct
thrust washer (See page

SA–73

).

9.

CHECK TOOTH CONTACT PATTERN
(See page

SA–73

)

10.

REMOVE SIDE GEAR SHAFTS

(a)

Using SST, remove the 2 side gear shafts.
SST

09520–24010

NOTICE:
Be careful not to damage the oil seal.
(b)

Using screwdriver, remove the 2 snap rings from the side
gear shafts.

11.

REMOVE SIDE GEAR SHAFT OIL SEALS

Using SST, remove the 2 oil seals.

SST

09308–00010

12.

REMOVE DIFFERENTIAL CARRIER RETAINERS

(a)

Remove the 16 bolts.

R11079

SST

SST

R00022

R15856

SST

R00052

SST

R00024

–

SUSPENSION AND AXLE

REAR DIFFERENTIAL CARRIER

SA–69

2069

(b)

Using SST, remove the 2 carrier retainers and washers.
SST

09950–40011, (09951–04020, 09952–04010,
09953–04030, 09954–04010, 09955–04061,
09957–04010, 09958–04011),
09950–60010 (09951–00450)

13.

REMOVE DIFFERENTIAL CASE

Take the differential case out of the carrier with lifting the ring
gear side, as shown in the illustration.
14.

REMOVE O–RINGS FROM DIFFERENTIAL CARRIER
RETAINERS

Using a screwdriver, remove the 2 O–rings.

15.

REMOVE SIDE BEARING OUTER RACES AND AD-
JUSTING PLATE WASHERS

Using SST and a press, remove the 2 outer races and adjusting
plate washers.

SST

09950–60020 (09951–00710),
09950–70010 (09951–07150)

16.

REMOVE DRIVE PINION, SPACER AND COMPANION
FLANGE

(a)

Using a chisel and hammer, loosen the staked part of the
nut.

(b)

Using SST, remove the nut.
SST

09229–55010, 09330–00021

(c)

Using a press, remove the drive pinion with the rear bear-
ing and remove the companion flange.

NOTICE:
Be careful not to drop the drive pinion.
(d)

Remove the spacer from the drive pinion.

R00042

SST

R09981

SST

SA1320

F03478

SST

R11085

Matchmarks

SA–70

–

SUSPENSION AND AXLE

REAR DIFFERENTIAL CARRIER

2070

17.

REMOVE OIL SEAL

Using SST, remove the oil seal.

SST

09308–00010

18.

REMOVE OIL SLINGER AND FRONT BEARING

19.

REMOVE REAR BEARING FRONT DRIVE PINION

Using SST and a press, remove the rear bearing from the drive
pinion.

SST

09950–00020

20.

REMOVE FRONT AND REAR BEARING OUTER
RACES AND ADJUSTING PLATE WASHER

NOTICE:
Do not remove the outer race except when replacing the
bearings.
HINT:
Measure the washer and note the thickness for reassembly.

21.

REMOVE SIDE BEARINGS

Using SST, remove the 2 side bearings from the differential
case.

SST

09950–40011, (09951–04020, 09952–04010,
09953–04030, 09954–04010, 09955–04061,
09957–04010, 09958–04011),
09950–60010 (09951–00450)

22.

REMOVE RING GEAR

(a)

Place matchmarks on the ring gear and differential case.

(b)

Remove the 10 ring gear set bolts.

(c)

Using a plastic hammer, tap on the ring gear to separate
it from the differential case.

SA1279

–

SUSPENSION AND AXLE

REAR DIFFERENTIAL CARRIER

SA–71

2071

23.

DISASSEMBLE DIFFERENTIAL CASE

(a)

Using a pin punch and hammer, remove the straight pin.

(b)

Remove these parts from the differential case:

Pinion shaft

2 pinion gears

2 pinion gear thrust washers

2 side gears

2 side gear thrust washers