Toyota Tundra. Manual — part 2896

Fig. 479: Identifying Thrust Needle Roller Bearings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Remove the thrust bearing race from the transmission case.

Fig. 480: Identifying Thrust Bearing Race
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

95. INSPECT REAR PLANETARY GEAR ASSEMBLY (See INSPECTION )

96. REMOVE 1ST AND REVERSE BRAKE PISTON

a. Place SST on the spring retainer and compress the brake return spring.

SST 09380-60010 (09381-06030, 09381-06040, 09381-06080, 09381-06120, 09381-06130, 09381-
05040, 09381-05050)

Fig. 481: Placing SST On Spring Retainer & Compressing Brake Return Spring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using SST, remove the snap ring and brake return spring.

SST 09350-30020 (09350-07070)

c. Hold the 1st and reverse brake piston and apply compressed air (392 kPa, 4.0 kgf/cm

2

, 57 psi) to

the transmission case to remove the 1st and reverse brake piston.

HINT:

If the piston does not pop out with compressed air, lift the piston out with needle-nose pliers.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

Fig. 482: Applying Compressed Air To Transmission Case To Remove 1st & Reverse Brake
Piston
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Remove the 3 O-rings from the 1st and reverse brake piston.

Fig. 483: Identifying 1st & Reverse Brake Piston O-Rings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

97. INSPECT 1ST AND REVERSE BRAKE RETURN SPRING SUB-ASSEMBLY (See

INSPECTION )

INSPECTION

1. INSPECT AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY

a. Remove the magnets, and use them to collect steel particles.

Fig. 484: Identifying Steel Particles
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

b. Carefully look at the foreign matter and particles in the pan and on the magnets to anticipate the

type of wear you will find in the transmission.



Steel (magnetic): bearing, gear and clutch plate wear



Brass (non-magnetic): bush wear

2. INSPECT NO. 2 1-WAY CLUTCH ASSEMBLY

a. Hold the reverse clutch hub and turn the 1-way clutch assembly. Check that the 1-way clutch turns

freely clockwise and locks when turned counterclockwise.

Fig. 485: Identifying No. 2 1-Way Clutch Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. INSPECT REAR CLUTCH DISC

a. Replace all discs if one of the following problems is present: 1) a disc, plate or flange is worn or

burnt, 2) the lining of a disc is peeled off or discolored, or 3) grooves have even a little bit of
damage.

Fig. 486: Identifying Rear Clutch Disc
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. INSPECT REVERSE CLUTCH HUB SUB-ASSEMBLY

a. Using a dial indicator, measure the inside diameter of the reverse clutch hub bush.

Standard inside diameter:

NOTE:

Before assembling new discs, soak them in ATF for at least 2 hours.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

41.912 to 41.937 mm (1.410 to 1.411 in.)

If the inside diameter is greater than the standard inside diameter, replace the reverse clutch hub.

Fig. 487: Measuring Inside Diameter Of Reverse Clutch Hub Bush Using Dial Indicator
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

5. INSPECT FORWARD CLUTCH HUB SUB-ASSEMBLY

a. Using a dial indicator, measure the inside diameter of the forward clutch hub bush.

Standard inside diameter:

30.200 to 30.225 mm (1.189 to 1.190 in.)

If the inside diameter is greater than the standard, replace the forward clutch hub.

Fig. 488: Measuring Inside Diameter Of Forward Clutch Hub Bush Using Dial Indicator
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6. INSPECT NO. 4 1-WAY CLUTCH ASSEMBLY

a. Hold the coast clutch hub and turn the 1-way clutch assembly. Check that the 1-way clutch turns

freely clockwise and locks when turned counterclockwise.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra