2003 LEXUS LS430 Factory Repair Manual

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LEXUS LS430 2003  Factory Repair Manual Fig. 89: Tapping Drive Pinion Side Of Differential Carrier 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
k. Using a plastic hammer, lightly tap the drive pinion side of the differential carrier.  
l.

Page 2130 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 90: Checking Ring Gear Backlash 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
ADJUST TOTAL PRELOAD 
a. Using SST and a torque wrench, measure the preload with the teeth of the drive pinion 
and

Page 2131 of 4500

LEXUS LS430 2003  Factory Repair Manual HINT: 
When the rear differential side gear shaft snap ring thickness changes by 0.02 mm 
(0.0008 in.), the total preload will change by approximately 0.1 N.m (1 kgf.cm, 0.9 
in..lbf). 
Fig. 91: Adjus

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LEXUS LS430 2003  Factory Repair Manual e. Recheck the total preload. 
Fig. 92: Checking Differential Ring Gear Backlash
 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION 
a. Coat 3 or

Page 2133 of 4500

LEXUS LS430 2003  Factory Repair Manual Fig. 93: Inspecting Tooth Contact Between Ring Gear And Drive Pinion 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
If tooth contact pattern is not correct, replace the adjusting washer installed on t

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LEXUS LS430 2003  Factory Repair Manual Fig. 94: Locating Adjusting Washer Installed On Front Of Drive Pinion Rear 
Bearing 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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LEXUS LS430 2003  Factory Repair Manual Fig. 95: Tooth Contact Pattern Chart 
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC. 
HINT: 
There are 42 thicknesses of the rear differential drive pinion plate washers available in 
0.01 mm (0.04 in.)

Page 2136 of 4500

LEXUS LS430 2003  Factory Repair Manual REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING 
a. Install the SST to the rear differential carrier assy. 
SST 09571-50010  
Fig. 96: Installing SST To Rear Differential Carrier Assy
 
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