Lexus RX300 (MCU15). Service manual — part 591

D03735

SST

–

AUTOMATIC TRANSAXLE

DIFFERENTIAL CASE

AX–107

U140F AX (RM848E)

9.

REMOVE TRANSAXLE CASE OIL SEAL

Using SST and a hammer, remove the oil seal from the trans-
axle case.

SST

09649–17010, (09950–70010 (09951–07100)

AX0BE–02

D03737

SST

D03738

SST

D03717

D03716

AX–108

–

AUTOMATIC TRANSAXLE

DIFFERENTIAL CASE

U140F AX (RM848E)

REASSEMBLY

HINT:
Coat all of the sliding and rotating surfaces with ATF before
reassembly.

1.

INSTALL TRANSAXLE HOUSING SIDE BEARING
OUTER RACE

Using SST and a hammer, install the bearing outer race.

SST

09350–32014 (09351–32111), 09950–70010
(09951–07150)

2.

INSTALL TRANSAXLE CASE SIDE BEARING OUTER
RACE

(a)

Install the plate washer to the transaxle case.

HINT:
First select and install a plate washer of less thickness than be-
fore.
(b)

Using SST and a hammer, install the bearing outer race.
SST

09223–15020, 09950–70010 (09951–07100)

3.

INSTALL FRONT DIFFERENTIAL CASE

(a)

Coat the front differential side gear thrust washer, front
differential side gear, front differential pinion shaft holder,
4 front differential pinion thrust washers, the 4 front differ-
ential pinions with ATF, install them to the front differential
case.

(b)

Install the 3 pinion shafts to the front differential case.

D03741

D03739

D03740

–

AUTOMATIC TRANSAXLE

DIFFERENTIAL CASE

AX–109

U140F AX (RM848E)

(c)

Using a dial indicator, measure the backlash of one pinion
gear while holding the front differential side gear toward
the case.
Standard backlash: 0.05 – 0.20 mm (0.002 – 0.008 in.)

NOTICE:
Do not mount the surface of front differential case which
contacts with bushing in a vise.
If the backlash is not within the specified value, refer to the table
below and select a thrust washer which will ensure that the
backlash is within the specified value.
Thrust washer thickness: mm (in.)

Mark

Thickness

Mark

Thickness

A

0.95 (0.0373)

F

1.20 (0.0472)

B

1.00 (0.0393)

G

1.25 (0.0492)

C

1.05 (0.0413)

H

1.30 (0.0512)

D

1.10 (0.0433)

J

1.35 (0.0532)

E

1.15 (0.0453)

K

1.40 (0.0552)

(d)

Engage the side gear to the above mentioned front differ-
ential case.

(e)

Install the differential case LH to the front differential case
and measure its center.

(f)

After that, remove the differential case LH.

(g)

Using a straight edge and feeler gauge, measure the
clearance between the front differential case and the side
gear.
t= Thrust washer thickness
L= Clearance
t= L– 0.17 – 0.26 mm (0.0067 – 0.0102 in.)

HINT:
There are 6 thrust washers in different thickness.
Thrust washer thickness: mm (in.)

Mark

Thickness

Mark

Thickness

A

0.95 (0.0373)

F

1.20 (0.0472)

B

1.00 (0.0393)

G

1.25 (0.0492)

C

1.05 (0.0413)

H

1.30 (0.0512)

D

1.10 (0.0433)

J

1.35 (0.0532)

E

1.15 (0.0453)

K

1.40 (0.0552)

If the clearance is not within the specified value, parts may have
been assembled incorrectly, so check and reassemble it.

D03742

D03714

D03720

D03743

D03744

AX–110

–

AUTOMATIC TRANSAXLE

DIFFERENTIAL CASE

U140F AX (RM848E)

(h)

Using a pin punch and hammer, install the 3 pins.

(i)

Using a snap ring expander, install the snap ring.

NOTICE:
Be careful not to damage the front differential case.

4.

INSTALL DIFFERENTIAL RH CASE

(a)

Install the center differential side gear thrust washer No.1,
conical spring and center differential side gear to the dif-
ferential RH case.

NOTICE:
Install the conical spring with the convex side facing up as
shown in the illustration.

(b)

Install the 5 center differential pinions, 5 center differen-
tial pinion thrust washers and center differential pinion
spider to the differential RH case.

5.

CHECK CENTER DIFFERENTIAL PINION GEAR
BACKLASH OF DIFFERENTIAL RH CASE SIDE

(a)

Using a dial indicator, measure the backlash of one pinion
gear while holding the front differential side gear toward
the case.
Standard backlash:
0.05 – 0.20 mm (0.0020 – 0.0079 in.)