2007 TOYOTA SIENNA differential

TF–22TRANSFER – TRANSFER UNIT
TF
REASSEMBLY
1. INSTALL TRANSFER DRIVEN PINION REAR
BEARING
(a) Using SST(s) and a press, install the transfer driven
pinion rear bearing outer race to the transfer case.
SST 09950-60010 (09951-00620), 09950-70010
(09951-07150)
NOTICE:
Place something like wood blocks under the
case to keep its level.
2. INSTALL TRANSFER OUTPUT WASHER
(a) Install the transfer output washer to the transfer
case.
HINT:
Reuse the washer.
3. INSTALL TRANSFER DRIVEN PINION FRONT
BEARING
(a) Install the transfer driven pinion front bearing outer
race to the transfer case with SST(s), bolt and nut.
SST 09950-60020 (09951-00750, 09951-00770,
09951-00810), 09316-60011 (09316-00061)
4. INSTALL RING GEAR MOUNTING CASE PLATE
WA S HE R
(a) Install the ring gear mounting case plate washer to
the transfer case.
HINT:
Reuse the washer.
5. INSTALL CENTER DIFFERENTIAL CASE TAPERED
ROLLER BEARING
(a) Using SST(s) and a press, install the center
differential case tapered roller bearing LH outer race
to the transfer case.
SST 09950-70010 (09951-07200), 09316-60011
(09316-00021)
6. INSTALL TRANSFER DRIVEN PINION FRONT
BEARING
(a) Using SST(s) and a press, install the transfer driven
pinion front bearing inner race to the driven pinion.
C082982E01
C083647E01
C083648E01
C083649E01

TF–24TRANSFER – TRANSFER UNIT
TF
(d) If the preload is insufficient, even though the
tightening torque of the transfer gear nut exceeds
the maximum of the standard value., loosen the
transfer gear nut and apply gear oil SAE 90 (GL-5)
to the transfer gear nut and the screw thread and
the base of driven pinion. And then repeat the
preceding operation . If the tightening torque is
bearing spacer with anew one and adjust it.
Torque: 378 N*m (3.855 kgf*cm, 279 ft.*lbf)
9. INSTALL RING GEAR
(a) Heat the ring gear in boiling water from 90 to 100
C
(194 to 212
F).
(b) Completely remove grease and moisture on the
contact surfaces of the ring gear and the transfer
ring gear mounting case.
(c) Align the matchmarks on the ring gear and transfer
ring gear mounting case and quickly assemble
them.
(d) Tighten the 12 bolts.
Torque: 78 N*m (790 kgf*cm, 57 ft.*lbf)
NOTICE:
• Tighten the bolts in diagonal order in splitting
several times.
• After the ring gear has well cooled down, fully
tighten the bolts.
• Make the bolt heads in order to check if they
are retightened or not.
10. INSTALL CENTER DIFFERENTIAL CASE TAPERED
ROLLER BEARING
(a) Using SST(s) and a press, install the inner race of
the center differential case tapered roller bearing to
the transfer ring gear mounting case.
SST 09506-35010, 09950-60010 (09951-00430),
09223-00010
NOTICE:
When replacing the inner race, replace it
together with the outer race.
C083651E01
C083652E01
C124918E01

TRANSFER – TRANSFER UNITTF–25
TF
11. INSTALL TRANSFER RING GEAR MOUNTING CASE
(a) Install the transfer ring gear mounting case to the
transfer case.
NOTICE:
Damage to the spline, the bearing's rotating
surface and gear face may cause a decrease in
their strength. Care should be taken when
installing them.
12. INSTALL NO. 2 TRANSFER RING GEAR MOUNTING
CASE WASHER
(a) Install the No. 2 transfer ring gear mounting case
washer to the transfer RH bearing retainer sub-
assembly.
HINT:
Reuse the washer.
13. INSTALL CENTER DIFFERENTIAL CASE TAPERED
ROLLER BEARING
(a) Using SST(s) and a press, install the center
differential case tapered roller bearing RH outer
race to the transfer RH bearing retainer sub-
assembly.
SST 09950-60010 (09951-00620), 09950-70010
(09951-07150)
14. INSTALL TRANSFER RH BEARING RETAINER SUB-
ASSEMBLY
(a) Place the transfer with the surface where the
transfer RH bearing retainer sub-assembly is facing
up.
(b) Align the centers of the transfer ring gear mounting
case and the transfer case.
(c) Insert SST into the transfer RH bearing retainer sub-
assembly.
SST 09387-00090
C067673
C083654E01
C151859
C057487E02

TF–26TRANSFER – TRANSFER UNIT
TF
(d) With SST and the transfer RH bearing sub-
assembly in close contact, install the transfer RH
bearing retainer sub-assembly together with SST
into the transfer case.
NOTICE:
Avoid interference between the case and the
retainer, and between the SST and the transfer
ring gear mounting case.
HINT:
If the engagement is tight, tap SST with a hammer
placing a brass bar on the center of SST.
(e) Make sure that the transfer RH bearing retainer sub-
assembly and transfer case contact closely.
(f) Tighten the 7 bolts evenly in order shown in the
illustration.
Torque: 28 N*m (286 kgf*cm, 21 ft.*lbf)
(g) Remove the SST.
15. INSPECT DIFFERENTIAL RING GEAR BACKLASH
(a) Set the dial gauge perpendicular to the ring gear
face, fix the driven pinion, and check backlash by
moving the ring gear.
Backlash:
0.10 to 0.15 mm (0.0039 to 0.0059 in.)
NOTICE:
Measure it at 3 points or more on the ring gear
periphery.
C149594E01
C149596E01
C149597E01
C050309

TRANSFER – TRANSFER UNITTF–27
TF
(b) If the measured value is out of standard, select a
proper washer for the center differential case
tapered roller bearing on the LH side from the table
below and install it to obtain the standard value.
HINT:
When the backlash is larger or smaller than the
standard, select a thinner or thicker washer
respectively.
(c) Ring gear mounting case plate washer location is
shown in the illustration.
16. INSPECT TOOTH CONTACT BETWEEN RING GEAR
AND DRIVE PINION
(a) Apply red lead primer thinly and uniformly to both
faces of the ring gear and rotate it several times.
NOTICE:
Check the tooth contact on the ring gear at 4
places or more.
MarkWasher Thickness
mm (in.)MarkWasher Thickness
mm (in.)MarkWasher Thickness
mm (in.)
AA 2.07 (0.0814) AB 2.10 (0.0826) AC 2.13 (0.0838)
BA 2.16 (0.0850) BB 2.19 (0.0862) BC 2.22 (0.0874)
CA 2.25 (0.0885) CB 2.28 (0.0897) CC 2.31 (0.0909)
DA 2.34 (0.0921) DB 2.37 (0.0933) DC 2.40 (0.0944)
EA 2.43 (0.0956) EB 2.46 (0.0968) EC 2.49 (0.0980)
FA 2.52 (0.0992) FB 2.55 (0.1003) FC 2.58 (0.1015)
GA 2.61 (0.1027) GB 2.64 (0.1039) GC 2.67 (0.1051)
HA 2.70 (0.1062) HB 2.73 (0.1074) HC 2.76 (0.1086)
JA 2.79 (0.1098) JB 2.82 (0.1110) JC 2.85 (0.1122)
KA 2.88 (0.1133) KB 2.91 (0.1145) KC 2.94 (0.1157)
LA 2.97 (0.1169) LB 3.00 (0.1181)
C083655E01
C050346

TRANSFER – TRANSFER UNITTF–29
TF
17. ADJUST TOTAL PRELOAD
(a) Using SST(s) and a torque wrench, measure the
initial torque with the driven pinion bearing contact
with the ring gear face.
SST 09326-20011
Torque: New bearing
+0.2 to 0.4 N*m (+2.3 to 3.9 kgf*cm, 1.8
to 3.5 in.*lbf)
Used bearing
+0.15 to 0.30 N*m (+1.6 to 3.1 kgf*cm,
1.3 to 2.7 in.*lbf)
NOTICE:
Before measurement, rotate the bearing in both
directions several times to make it fit.
HINT:
Use a torque wrench with a fulcrum length of 160
mm (6.30 in.)
(b) If the value is out of standard range, select the
washer for the center differential case tapered roller
bearing RH side from the following table and
replace it.
(c) The location of the transfer ring gear mounting case
washer No. 2 for preload adjustment is show in the
illustration.
C083635E07
MarkWasher Thickness mm
(in.)MarkWasher Thickness mm
(in.)MarkWasher Thickness mm
(in.)
AA 1.47 (0.0578) AB 1.50 (0.0590) AC 1.53 (0.0602)
BA 1.56 (0.0614) BB 1.59 (0.0625) BC 1.62 (0.0637)
CA 1.65 (0.0649) CB 1.68 (0.0661) CC 1.71 (0.0673)
DA 1.74 (0.0685) DB 1.77 (0.0696) DC 1.80 (0.0708)
EA 1.83 (0.0720) EB 1.86 (0.0732) EC 1.89 (0.0744)
FA 1.92 (0.0755) FB 1.95 (0.0767) FC 1.98 (0.0779)
GA 2.01 (0.0790) GB 2.04 (0.0803) GC 2.07 (0.0814)
HA 2.10 (0.0826) HB 2.13 (0.0838) HC 2.16 (0.0850)
JA 2.19 (0.0862) JB 2.22 (0.0874) JC 2.25 (0.0885)
KA 2.28 (0.0897) KB 2.31 (0.0909) KC 2.34 (0.0921)
LA 2.37 (0.0933) LB 2.40 (0.0944) LC 2.43 (0.0956)
MA 2.46 (0.0968) MB 2.49 (0.0980) MC 2.52 (0.0992)
NA 2.55 (0.1003) NB 2.58 (0.1015)
C083657E01

TRANSFER – TRANSFER UNITTF–31
TF
19. REMOVE CENTER DIFFERENTIAL CASE TAPERED
ROLLER BEARING
(a) Fix the transfer RH bearing retainer sub-assembly
in a vise.
(b) Using SST(s), remove the center differential case
tapered roller bearing RH outer race and transfer
ring gear mounting case washer No. 2 from the
transfer RH bearing retainer sub-assembly.
SST 09308-00010
20. INSTALL SIDE GEAR SHAFT HOLDER BEARING
(a) Install the side gear shaft holder bearing to the
transfer RH bearing retainer sub-assembly.
(b) Using snap ring pliers, install the side gear shaft
holder hole snap ring.
HINT:
Check that the side gear shaft holder hole snap ring
fits in the groove of the transfer RH bearing retainer
sub-assembly.
21. INSTALL TRANSFER RH BEARING RETAINER OIL
SEAL
(a) Using SST(s) and a press, install the transfer RH
bearing retainer oil seal No. 2 to the transfer RH
bearing retainer sub-assembly.
SST 09950-60010 (09951-00350, 09951-00560,
09952-06010), 09950-70010 (09951-07150)
NOTICE:
Carefully press-fit so that the oil seal will not be
tilted.
(b) Apply small amount of MP grease No. 2 to the oil
seal lip.
22. INSTALL NO. 2 TRANSFER RING GEAR MOUNTING
CASE WASHER
(a) Install the No. 2 selected transfer ring gear
mounting washer to the transfer RH bearing retainer
sub-assembly.
23. INSTALL CENTER DIFFERENTIAL CASE TAPERED
ROLLER BEARING
(a) Using SST(s) and a press, install the center
differential case tapered roller bearing RH outer
race to the transfer RH bearing retainer sub-
assembly.
SST 09950-60010 (09951-00620), 09950-70010
(09951-07150)
C083688E01
C083699
C083689E01
C083690E01

TF–34TRANSFER – TRANSFER UNIT
TF
26. INSPECT TOTAL PRELOAD
(a) Using SST(s) and a torque wrench, measure the
initial torque with the driven pinion being in contact
with the ring gear face.
SST 09326-20011
Torque: New bearing
+0.2 to 0.4 N*m (+2.3 to 3.9 kgf*cm, 1.8
to 3.5 in.*lbf)
Used bearing
+0.15 to 0.30 N*m (+1.6 to 3.1 kgf*cm,
1.3 to 2.7 in.*lbf)
HINT:
Use a torque wrench with a fulcrum length of
160mm (6.30 in.)
27. INSTALL TRANSFER RH BEARING RETAINER OIL
SEAL
(a) Using SST(s), install the transfer RH bearing
retainer oil seal to the transfer RH bearing retainer
sub-assembly to the position as shown in the
illustration.
SST 09223-46011
NOTICE:
Install the oil seal carefully so that it will not be
tilted.
(b) Apply MP grease to the oil seal lip.
28. INSTALL TRANSFER CASE OIL SEAL
(a) Using(s), install the transfer case oil seal to the
transfer case at the position as shown in the
illustration.
SST 09387-00010, 09950-70010 (09951-07150)
NOTICE:
Install the oil seal carefully so that it will not be
tilted.
(b) Apply small amount of MP grease to the oil seal lip.
29. INSTALL CTR DIFFERENTIAL LOCK SLEEVE
(a) Coat a new O-ring with hypoid gear oil.
(b) Install the O-ring to the CTR differential lock sleeve.
NOTICE:
Be careful not to twist the O-ring and fit it
properly in the retainer's groove.
C083650E01
C083691E01
C083631E02
C050354