2007 TOYOTA SIENNA Service Repair Manual

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEARAX–255
AX
DISASSEMBLY
1. INSPECT UNDERDRIVE PLANETARY GEAR 
PRELOAD
HINT:
(See page AX-256)
2. REMOVE FRONT PLANETARY GEAR NUT
(a) Using SST,

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TOYOTA SIENNA 2007  Service Repair Manual AX–256U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEAR
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4. REMOVE UNDERDRIVE PLANETARY GEAR 
ASSEMBLY
(a) Using SST and a press, remove the differential drive 
pinion, parking lock gear,

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEARAX–257
AX
(b) Using SST and a torque wrench, measure the 
turning torque of the underdrive planetary gear 
assembly while rotating the torque

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TOYOTA SIENNA 2007  Service Repair Manual AX–258U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEAR
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(e) Using a snap ring pliers, install the snap ring.
2. INSTALL UNDERDRIVE PLANETARY GEAR 
ASSEMBLY
(a) Using SST and a press, pres

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE PLANETARY GEARAX–259
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3. INSTALL DIFFERENTIAL DRIVE PINION
(a) Using SST and a press, press the differential drive 
pinion.
SST 09726-40010, 09950-60010

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TOYOTA SIENNA 2007  Service Repair Manual AX–260U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE CLUTCH
AX
TRANSMISSION
U151E AUTOMATIC TRANSAXLE
UNDERDRIVE CLUTCH
COMPONENTS
C114869E04

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TOYOTA SIENNA 2007  Service Repair Manual U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE CLUTCHAX–261
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DISASSEMBLY
1. INSPECT UNDERDRIVE PACK CLEARANCE
HINT:
(See page AX-262)
2. REMOVE UNDERDRIVE CLUTCH FLANGE NO.2 
HOLE SNAP RING
(a) Using

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TOYOTA SIENNA 2007  Service Repair Manual AX–262U151E AUTOMATIC TRANSAXLE  –  UNDERDRIVE CLUTCH
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(d) Remove the return spring from the underdrive clutch 
drum.
5. REMOVE UNDERDRIVE CLUTCH PISTON SET
(a) Install the underdrive clutch to