LEXUS LS430 2003 Factory Repair Manual

Fig. 61: Installing Differential Case Bearings
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
49.INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING
a. Using SST and a press, install the rear bearing.
SST 09502-24010

Fig. 62: Installing Rear Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Using SST and a press, install the rear bearing outer race and adjusting washer.
SST 09950-70010 (09951-07100), 09255-10012
HINT:
Select a thrust shim of the same thickness as the removed one.

Fig. 63: Installing Rear Bearing Outer Race And Adjusting Washer
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
50.INSTALL DIFFERENTIAL DRIVE PINION
a. Using SST and a press, install the front bearing outer race.
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b. Install the drive pinion in the differential carrier.

Fig. 64: Installing Front Bearing Outer Race
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Using SST and a press, install the front bearing on the drive pinion.
SST 09316-60011 (09316-00011), 09608-04031 (09951-07200)
HINT:
Assemble the spacer and oil seal after ad
justing the tooth contact pattern.

Fig. 65: Installing Front Bearing On Drive Pinion
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
51.ADJUST DIFFERENTIAL DRIVE PINION PRELOAD
a. Using SST, install the companion flange onto the differential carrier.
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Fig. 66: Installing Companion Flange Onto Differential Carrier
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Adjust the drive pinion preload by tightening the companion flange nut.
HINT:
Tighten the nut using approximately 98 N.m (1,000 kgf.cm) of force and then tighten it further
while observing the preload. Using SST to hold the flange, tighten the nut.
SST 09229-55010, 09330-00021

Fig. 67: Adjusting Drive Pinion Preload
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Using SST and a torque wrench, measure the preload.
Drive pinion preload (at starting):
New bearing:
1.5 to 2.0 N.m (15 to 21 kgf.cm, 13 to 18 in..lbf)
Reused bearing:
0.5 to 0.8 N.m (5 to 8 kgf.cm, 4.3 to 6.9 in..lbf)
HINT:
Do not apply hypoid gear oil if a new bearing is used.
Turn the bearing clockwise and counterclockwise several times to stabilize the bearing,
and then measure the backlash.
If the preload is not within the specification, adjust the rear differential drive pinion
preload or repair as necessar
y.

Fig. 68: Measuring Drive Pinion Preload
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSTALL REAR DIFFERENTIAL CASE SUB-ASSY
a. Install the drive side bearing in the differential carrier first, as shown in the illustration,
then install the differential case.

Fig. 69: Installing Rear Differential Case Sub-Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
INSTALL REAR DIFFERENTIAL CASE BEARING
a. Using SST and a hammer, install the drive pinion side outer race.
SST 09608-32010, 09950-70010 (09951-07200)
HINT:
Tap in the outer race until half of the side gear shaft snap ring groove of the differential
carrier can be seen.

Fig. 70: Installing Drive Pinion Side Outer Race
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Place the SST to the differential carrier.
SST 09571-50010
c. Ti
ghten the SST bolt until the SST disc lightly touches to the case bearing (outer race).