Page 1969 of 3000

AX–284U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASE
AX
4. INSTALL FRONT DIFFERENTIAL CASE FRONT
TAPERED ROLLER BEARING
(a) Using SST and a press, install the front differential
case tapered roller bearing FR to the differential
case.
SST 09950-70010 (09951-07100), 09649-17010
NOTICE:
Do not make a damage on the bearing cage
during the bearing inner race installation.
(b) Using SST, install the outer race of the tapered roller
bearing FR.
SST 09527-17011, 09950-60020 (09951-01030)
NOTICE:
Clearance is not allowed between the plate
washer and transaxle housing.
5. INSTALL FRONT DIFFERENTIAL SIDE GEAR
(a) Using SST and a press, install the front differential
case tapered roller bearing RR to the differential
case.
SST 09316-20011, 09214-76011
NOTICE:
Do not make a damage on the bearing cage
during the bearing inner race installation.
(b) Install the front differential case shim RR to the
transaxle case.
If the bearing is new, check to select a front
differential case shim RR of proper thickness
starting from the thinner ones. If the bearing is
reused, check to select a front differential case shim
RR starting from the same thickness as one
installed before disassembly.
(c) Using SST, install the outer race of the front
differential case tapered roller bearing RR.
SST 09950-60020 (09951-00890), 09950-70010
(09951-07100)
NOTICE:
Clearance is not allowed between the differential
case shim and transaxle case.
6. ADJUST TAPERED ROLLER BEARING PRELOAD
HINT:
(See page AX-279)
D025612E01
D025603E01
D025613E01
D025601E01
Page 1970 of 3000

U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASEAX–285
AX
7. INSTALL FRONT DIFFERENTIAL RING GEAR
(a) Using ATF and heater, heat the front differential ring
gear to 90 to 110
C (194.0 to 230.0F).
NOTICE:
Do not heat the ring gear to more than 110
C
(230.0
F).
(b) Clean the contact surface of the front differential
case.
(c) Set the match-marks, install the front differential ring
gear case quickly.
NOTICE:
Do not install the bolts while the ring gear is hot.
(d) Temporarily install the 8 bolts as shown in the
illustration.
(e) Remove the 4 bolts shown in the illustration.
(f) Temporarily install the remaining 8 set bolts.
(g) Fully tighten the set bolts.
Torque: 95.1 N*m (970 kgf*cm, 70 ft.*lbf)
NOTICE:
Tighten the bolts a little at a time in diagonal
order.
8. INSTALL DIFFERENTIAL SIDE BEARING RETAINER
OIL SEAL
(a) Using SST and a hammer, install a new oil seal.
SST 09223-15020, 09950-70010 (09951-07100)
(b) Coat the rip of oil seal with a little MP grease.
D025215E02
C050186E01
C050232E01
C050233E01
D025605E01
Page 1971 of 3000
AX–286U151F AUTOMATIC TRANSAXLE – DIFFERENTIAL CASE
AX
9. INSTALL TRANSAXLE HOUSING OIL SEAL
(a) Wind a vinyl tape around SST at the place 6.0 mm
(0.236 in.) above from the bottom end until the
thickness of the wound tape is about 5.0 mm (0.197
in.).
SST 09950-60020 (09951-00730)
NOTICE:
Remove foreign matter such as grease on the
SST before winding the tape.
(b) Coat the rip of oil seal with a little MP grease.
(c) Using SST, install a new oil seal.
SST 09950-60020 (09951-00730), 09950-70010
(09951-07150)
Standard press in depth:
5.5 - 6.5 mm (0.217 - 0.256 in.)
NOTICE:
Stop pressing when the would vinyl tape is
contact with the transaxle housing.
D003809E02
D025615E01
Page 1972 of 3000
AX–250U151F AUTOMATIC TRANSAXLE – DIRECT CLUTCH
AX
TRANSMISSION
U151F AUTOMATIC TRANSAXLE
DIRECT CLUTCH
COMPONENTS
C119011E03
Page 1973 of 3000

U151F AUTOMATIC TRANSAXLE – DIRECT CLUTCHAX–251
AX
DISASSEMBLY
1. INSPECT PACK CLEARANCE OF REVERSE CLUTCH
HINT:
(See page AX-253)
2. INSPECT PACK CLEARANCE OF DIRECT CLUTCH
AND OVERDRIVE CLUTCH
HINT:
(See page AX-253)
3. REMOVE DIRECT MULTIPLE DISC CLUTCH
(a) Using a screwdriver, remove the snap ring from the
intermediate shaft.
(b) Remove the flange, 3 discs, 3 plates and cushion
plate from the intermediate shaft.
4. REMOVE OVERDRIVE DIRECT CLUTCH DISC
(a) Using a screwdriver, remove the snap ring from the
intermediate shaft.
(b) Remove the flange, 4 discs and 4 plates from the
intermediate shaft.
5. REMOVE OVERDRIVE CLUTCH RETURN SPRING
SUB-ASSEMBLY
(a) Place SST on the clutch balancer and compress the
spring with a press.
SST 09387-00020
(b) Using a snap ring expander, remove the snap ring
from the direct clutch drum.
NOTICE:
• Stop the press when the spring seat is
lowered to the place 1 to 2 mm (0.039 to 0.078
in.) from the snap ring groove.
D026419E01
D026420
D026422
D003677E01
Page 1974 of 3000
AX–252U151F AUTOMATIC TRANSAXLE – DIRECT CLUTCH
AX
• This prevents the spring seat from being
deformed.
• Do not expand the snap ring excessively.
(c) Remove the clutch balancer from the direct clutch
drum.
(d) Remove the overdrive clutch return spring from the
direct clutch drum.
6. REMOVE OVERDRIVE DIRECT CLUTCH PISTON
(a) Install the intermediate shaft on the transaxle rear
cover.
(b) Holding the direct clutch piston with your hand,
apply compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi)
to the transaxle rear cover to remove the direct
clutch piston.
7. REMOVE OVERDRIVE DIRECT CLUTCH DRUM SUB-
ASSEMBLY
(a) Holding the direct clutch drum by hand, apply
compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the
transaxle rear cover to remove the direct clutch
drum.
D026424E02
D026423E04
D026463
D026425
Page 1975 of 3000

U151F AUTOMATIC TRANSAXLE – DIRECT CLUTCHAX–253
AX
8. REMOVE OVERDRIVE DIRECT CLUTCH O-RING
(a) Using a screwdriver, remove the O-ring from the
direct clutch drum.
INSPECTION
1. INSPECT PACK CLEARANCE OF REVERSE CLUTCH
(a) Install the intermediate shaft and needle roller
bearing onto the transaxle rear cover.
(b) Using a dial indicator, measure the reverse clutch
pack clearance while applying and releasing
compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi).
Pack clearance:
0.60 to 0.82 mm (0.02362 to 0.03228 in.)
If the pack clearance is not as specified, inspect the
discs, plates and flange.
2. INSPECT PACK CLEARANCE OF DIRECT CLUTCH
AND OVERDRIVE CLUTCH
(a) Using a dial indicator, measure the direct clutch and
overdrive clutch pack clearance while applying and
releasing compressed air (392 kPa, 4.0 kgf/cm
2, 57
psi).
Pack clearance:
0.61 to 0.83 mm (0.02401 to 0.03268 in.)
If the pack clearance is not as specified, inspect the
discs, plates and flange.
D026464E01
D026426E02
D026427E01
Page 1976 of 3000

AX–254U151F AUTOMATIC TRANSAXLE – DIRECT CLUTCH
AX
3. INSPECT DIRECT MULTIPLE DISC CLUTCH DISC
(a) Check if the sliding surfaces of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
HINT:
• 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.
4. INSPECT OVERDRIVE DIRECT CLUTCH DISC
(a) Check if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
HINT:
• 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.
5. INSPECT OVERDRIVE CLUTCH RETURN SPRING
SUB-ASSEMBLY
(a) Using vernier calipers, measure the free length of
the spring together with the spring seat.
Standard free length:
25.91 mm (1.0201 in.)
6. INSPECT PACK CLEARANCE OF REVERSE CLUTCH
(a) Install the intermediate shaft onto the transaxle rear
cover.
(b) Using a dial indicator, measure the direct clutch
pack clearance while applying and releasing
compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).
Clearance:
0.60 to 0.82 mm (0.02362 to 0.03228 in.)
If the pack clearance is less than the minimum,
parts may have been assembled incorrectly, so
check and reassemble again. If the clearance is not
as specified, select another flange.
HINT:
There are 7 flanges of different thickness.
Flange thickness: mm (in.)
D026718
D026719
D009211E02
D026426E02
No. Thickness No. Thickness
1 3.0 (0.118) 5 3.4 (0.134)
2 3.1 (0.122) 6 3.5 (0.138)
3 3.2 (0.126) 7 3.6 (0.142)
4 3.3 (0.130) - -