2007 TOYOTA SIENNA differential

AX–224U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNIT
AX
(d) Install the needle roller bearing to the multiple clutch
hub.
Bearing diameter: mm (in.)
(e) Install the multiple clutch hub to the transaxle case.
44. INSTALL FORWARD CLUTCH ASSEMBLY
(a) Coat the thrust needle roller bearing with ATF.
(b) Install the thrust needle roller bearing to the forward
clutch.
Thrust bearing diameter: mm (in.)
NOTICE:
Install the thrust bearing properly so that the no-
colored race or blue ink jet race will be visible.
(c) Install the forward clutch to the forward clutch
assembly.
NOTICE:
• Align the splines of all discs in the forward
clutch with those of multiple clutch hub to
install them securely.
• Be careful not to damage the bushing inside
of the forward clutch hub during installation.
45. INSTALL OVERDRIVE BRAKE GASKET
(a) Install 2 new overdrive brake gaskets.
46. INSTALL DIFFERENTIAL GEAR ASSEMBLY
(a) Install the differential gear assembly to the transaxle
case.
D026711E02
Inside Outside
Bearing 23.6 (0.929) 44 (1.732)
D003820E01
Inside Outside
Thrust Bearing 33.58 (1.3220) 51.9 (2.043)
D003574E02
D003573
D026450E04

AX–188U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNIT
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28. INSPECT INPUT SHAFT ENDPLAY
HINT:
(See page AX-204)
29. REMOVE TRANSAXLE HOUSING
(a) Remove the 16 bolts.
(b) Tap on the circumference of the transaxle housing
with a plastic hammer to remove the transaxle
housing from the transaxle case.
NOTICE:
The differential may be accidentally removed
when the transaxle housing is removed.
30. REMOVE OIL PUMP ASSEMBLY
(a) Remove the 7 bolts and oil pump from the transaxle
case.
31. REMOVE THRUST NEEDLE ROLLER BEARING
(a) Remove the thrust needle roller bearing from the
underdrive planetary gear assembly.
32. REMOVE THRUST BEARING UNDERDRIVE RACE
NO.2
(a) Remove the thrust bearing underdrive race No.2
from the underdrive planetary gear assembly.
D003568
D003569E05
D025505E02
D025506E03

U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNITAX–189
AX
33. REMOVE DIFFERENTIAL GEAR ASSEMBLY
(a) Remove the differential gear assembly from the
transaxle case.
34. REMOVE OVERDRIVE BRAKE GASKET
(a) Remove the 2 overdrive brake gaskets from the
transaxle case.
35. REMOVE FORWARD CLUTCH ASSEMBLY
(a) Remove the forward clutch assembly from the
transaxle case.
(b) Remove the thrust needle roller bearing from the
forward clutch.
36. REMOVE MULTIPLE DISC CLUTCH HUB
(a) Remove the thrust needle roller bearing, multiple
disc clutch hub, thrust needle roller bearing and
thrust bearing race No.1 from the transaxle case.
37. INSPECT MULTIPLE DISC CLUTCH CLUTCH HUB
HINT:
(See page AX-201)
D026450E04
D003573
D003574E02
D003906E01
D026787E03

U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNITAX–201
AX
79. REMOVE UNDERDRIVE OUTPUT SHAFT OIL SEAL
RING
(a) Remove the oil seal ring from the transaxle housing.
80. REMOVE DIFFERENTIAL GEAR LUBE APPLY TUBE
(a) Remove the bolt, transaxle apply tube clamp and
differential gear lube apply tube from the transaxle
housing.
NOTICE:
Do not bend the tubes.
INSPECTION
1. INSPECT MULTIPLE DISC CLUTCH HUB
(a) Using a dial indicator, measure the inside diameter
of the forward clutch hub bushing
Standard inside diameter:
23.025 to 23.046 mm (0.9065 to 0.9073 in.)
Maximum inside diameter:
23.09 mm (0.9091 in.)
NOTICE:
Check the contact surface of the bushing in the
direct clutch shaft. If any scratch or
discoloration is found, replace the direct clutch
sub-assembly with a new one.
If the inside diameter is greater than the maximum,
replace the forward clutch hub with a new one.
2. INSPECT UNDERDRIVE CLUTCH DISC NO.2
(a) Check if the sliding surfaces of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
NOTICE:
• If the lining of the disc comes off or discolors,
or if a part of the groove is worn, replace all
discs.
• Before installing new discs, immerse them in
ATF for at least 15 minutes.
D003915E05
D026400E02
D003829E02
D009196

AX–272U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASE
AX
DISASSEMBLY
1. REMOVE FRONT DIFFERENTIAL RING GEAR
(a) Place the match-marks on the ring gear and
differential case.
(b) Remove the 16 bolts.
(c) Using a plastic hammer, tap ring gear to remove it
from the case.
2. REMOVE FRONT DIFFERENTIAL SIDE GEAR
(a) Remove the differential LH case from the differential
case assembly.
(b) Remove the differential case No.2 from the
differential case LH.
C050182E01
C050183E01
C050184E01
C050187E01
C050188E01

U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASEAX–273
AX
(c) Remove the front differential side gear, front
differential side gear thrust washer, conical spring
and center differential side gear thrust washer No.2
from the differential case LH.
(d) Using a snap ring expander, remove the pinion shaft
spacer snap ring.
(e) Using a pin punch and hammer, remove 3 straight
pins.
(f) Remove the center differential pinion shaft and 2
differential pinion shafts.
(g) Remove 4 front differential pinions, 4 front
differential pinion thrust washers, front differential
pinion shaft holder, front differential planetary ring
and differential side gear thrust washer No.1.
C050189E01
D025610E01
C050190E01
C050191E01
C050943E01

AX–274U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASE
AX
3. REMOVE FRONT DIFFERENTIAL CASE REAR
TAPERED ROLLER BEARING
(a) Using SST, remove the front differential case rear
tapered roller bearing from the differential case.
SST 09950-00020, 09950-00030, 09950-60010
(09951-00480)
(b) Using SST, remove the front differential case rear
tapered roller bearing outer race and differential
case washer.
SST 09308-00010
4. REMOVE CENTER DIFFERENTIAL PINION
(a) Using torx socket (T50), remove the 15 bolts.
(b) Place the matchmarks on the differential
intermediate case and differential case.
(c) Remove the differential intermediate case from the
differential case RH.
(d) Remove the center differential side gear, conical
spring washer and center differential side gear
thrust washer No.1 RH from the differential case
RH.
D025597E05
D025598E03
C050193E01
C050230E01
C050196E01

U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASEAX–275
AX
(e) Remove the differential spider, 5 center differential
pinions and 5 center differential pinion thrust
washers from the differential intermediate case.
5. REMOVE FRONT DIFFERENTIAL CASE FRONT
TAPERED ROLLER BEARING
(a) Using SST, remove the front differential case front
tapered roller bearing from the differential case.
SST 09950-00020, 09950-00030
SST 09950-60010 (09951-00600)
(b) Using SST, remove the front differential case front
tapered roller bearing outer race and differential
case washer.
SST 09308-00010
6. REMOVE TRANSAXLE HOUSING OIL SEAL
(a) Using SST, remove the oil seal.
SST 09950-70010 (09951-07100)
SST 09649-17010
7. REMOVE DIFFERENTIAL SIDE BEARING RETAINER
OIL SEAL
(a) Using SST, remove the oil seal.
SST 09950-70010 (09951-07100), 09608-10010
C050194E01
D025611E01
D025596E03
D025599E02
D025600E02