Toyota Tundra. Manual — part 1022

Fig. 89: Removing Bearing Using SST (Inner Race)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

20. INSTALL REAR DIFFERENTIAL DRIVE PINION BEARING SPACER

a. Install a new spacer onto the drive pinion.

Fig. 90: Identifying Drive Pinion Spacer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

21. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

a. Install the drive pinion, front bearing (inner race) and oil slinger.

Fig. 91: Identifying Drive Pinion, Front Bearing And Oil Slinger
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using SST and the companion flange, install the bearing (inner race) and then remove the

companion flange.

SST 09950-30012 (09951-03010, 09953-03010, 09954-03010, 09955-03030, 09956-03050)

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra

Fig. 92: Installing Bearing (Inner Race)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

22. INSTALL REAR DIFFERENTIAL CARRIER OIL SEAL

a. Using SST and a plastic-faced hammer, tap in a new oil seal until its surface is flush with the

differential carrier end.

SST 09316-12010,09649-17010

Standard oil seal depth: 0.05 to 0.95 mm (0.00197 to 0.0374 in.)

HINT:

Connect 2 SST with vinyl tape.

Fig. 93: Tapping In Oil Seal Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Coat the lip of the oil seal with MP grease.

23. INSTALL REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY

a. Using SST, install the companion flange.

SST 09950-30012 (09951-03010, 09953-03010, 09954-03010, 09955-03030, 09956-03030)

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra

Fig. 94: Installing Companion Flange Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

24. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD

a. Coat the threads of a new nut with hypoid gear oil.

b. Using SST to hold the companion flange.

SST 09330-00021 (09330-00030)

Fig. 95: Tightening Companion Flange Nut Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Tighten the nut until the standard preload is reached.

Torque: 441 N*m (4497 kgf*cm, 325 ft.*lbf) or less

d. Using a torque wrench, measure the preload of the backlash between the drive pinion and ring gear.

Standard preload (at starting)

PRELOAD SPECIFICATIONS

Bearing

Specified Condition

New

1.04 to 1.69 N*m (11 to 17 kgf*cm, 10 to 14 in.*lbf)

Reused

0.85 to 1.37 N*m (9 to 13 kgf*cm, 8 to 12 in.*lbf)

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra

Fig. 96: Measuring Preload Of Backlash Between Drive Pinion And Ring Gear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

If the preload is greater than the maximum, replace the bearing spacer.

If the preload is less than the minimum, retighten the nut with 13 N*m (130 kgf*cm, 9 ft.*lbf) of
torque at a time until the specified preload is reached.

Torque: 441 N*m (4497 kgf*cm, 325 ft.*lbf) or less

If the maximum torque is exceeded while retightening the nut, replace the bearing spacer and repeat
the preload adjusting procedure.

HINT:

Do not loosen the pinion nut to reduce the preload.

25. INSPECT TOTAL PRELOAD

a. Using a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in

contact.

Fig. 97: Measuring Preload With Teeth Of Drive Pinion And Ring Gear In Contact
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard total preload (at starting):

Standard drive pinion preload plus 0.24 to 0.46 N*m (3 to 4 kgf*cm, 3 to 4 in.*lbf)

26. INSPECT DIFFERENTIAL RING GEAR BACKLASH

2009 Toyota Tundra

2009 DRIVELINE/AXLES Differential - Tundra