2007 TOYOTA SIENNA Service Repair Manual

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TOYOTA SIENNA 2007  Service Repair Manual 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 ro

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TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  DIFFERENTIAL CASEAX–285
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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).

Page 1971 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–286U151F AUTOMATIC TRANSAXLE  –  DIFFERENTIAL CASE
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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

Page 1972 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–250U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCH
AX
TRANSMISSION
U151F AUTOMATIC TRANSAXLE
DIRECT CLUTCH
COMPONENTS
C119011E03

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TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCHAX–251
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DISASSEMBLY
1. INSPECT PACK CLEARANCE OF REVERSE CLUTCH
HINT:
(See page AX-253)
2. INSPECT PACK CLEARANCE OF DIRECT CLUTCH 
AND OVERDRIVE CLUTC

Page 1974 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–252U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCH
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• This prevents the spring seat from being 
deformed.
• Do not expand the snap ring excessively.
(c) Remove the clutch balancer from the di

Page 1975 of 3000

TOYOTA SIENNA 2007  Service Repair Manual U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCHAX–253
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8. REMOVE OVERDRIVE DIRECT CLUTCH O-RING
(a) Using a screwdriver, remove the O-ring from the 
direct clutch drum.
INSPECTION
1. INSPECT PACK CL

Page 1976 of 3000

TOYOTA SIENNA 2007  Service Repair Manual AX–254U151F AUTOMATIC TRANSAXLE  –  DIRECT CLUTCH
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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, r