2003 LEXUS LS430 Factory Repair Manual

Page 2105 of 4500

LEXUS LS430 2003  Factory Repair Manual 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 differ

Page 2106 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 2107 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 2108 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 2109 of 4500

LEXUS LS430 2003  Factory Repair Manual 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 oute

Page 2110 of 4500

LEXUS LS430 2003  Factory Repair Manual 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

Page 2111 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 71: Placing SST To Differential Carrier 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
d. Using SST and a hammer, install the ring gear side outer race.  
SST 09950-70010 (09951-07200), 09608-320

Page 2112 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 72: Installing Ring Gear Side Outer Race 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING 
HINT: 
This procedure is required only when final gear