LEXUS LS430 2003 Factory Repair Manual
Manufacturer: LEXUS, Model Year: 2003,
Model line: LS430,
Model: LEXUS LS430 2003
Pages: 4500, PDF Size: 87.45 MB
LEXUS LS430 2003 Factory Repair Manual
LS430 2003
LEXUS
LEXUS
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LEXUS LS430 2003 Factory Repair Manual
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Page 2161 of 4500
Fig. 121: Tapping Differential Carrier On Drive Pinion Side
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
53.ADJUST DIFFERENTIAL DRIVE PINION PRELOAD
a. Using SST and a torque wrench, measure the preload.
SST 09229-55010
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)
Page 2162 of 4500
Fig. 122: Adjusting Differential Drive Pinion Preload
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. If the preload is greater than the specified maximum value, replace the bearing spacer.
c. If the preload is less than the specified minimum value, check the preload while retightening the
nut by 5 to 10 degrees to adjust it into the specified value range.
Torque: 98 to 490 N.m
(1,000 to 5000 kgf.cm, 72 to 361 ft.lbf)
HINT:
Page 2163 of 4500
Tighten the nut using approximately 98 N.m (1,000 kgf.cm) of force and then tighten it further
while observing the preload.
d. Even if the nut tightening torque is greater than the specified maximum value, if the preload is less
than the specified minimum value, loosen the nut and check that the threads of the nut and drive
pinion are not stripped.
e. If the threads are not stripped, replace the spacer and apply hypoid gear oil LSD to the threads and
repeat the procedure.
54.INSPECT RUNOUT OF DIFFERENTIAL DRIVE PINION
a. Place a dial indicator where 10 mm (0.39 in.) away from the drive pinion shaft tip at a right angle.
b. Measure the shaft runout.
Maximum runout: 0.08 mm (0.0031 in.)
Fig. 123: Inspecting Differential Drive Pinion Runout
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
55.INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL
a. Appl
y MP grease to the 2 new oil seal lips.
Page 2164 of 4500
b. Using SST and a hammer, tap a new oil seal until the face becomes flush with the differential
carrier surface.
SST 09223-15030, 09950-70010 (09951-07200)
Fig. 124: Installing Rear Differential Side Gear Shaft Oil Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
56.INSPECT TOTAL PRELOAD
a. Using SST and a torque wrench, check the torque (at starting) with the drive pinion and ring gear
teeth in contact.
SST 09229-55010
Total preload (at starting):
Drive pinion preload plus 0.46 to 1.37 N.m
(4.69 to 13.97 kgf.cm, 4.07 to 12.13 in..lbf)
Page 2165 of 4500
Fig. 125: Inspecting Total Preload
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
57.INSTALL REAR DRIVE PINION NUT
a. Using a chisel and a hammer, calk the nut.
Page 2166 of 4500
Fig. 126: Calking Rear Drive Pinion Nut
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
58.REMOVE DIFFERENTIAL CARRIER ASSY REAR
a. Remove the differential carrier assy from the overhaul attachment.
Page 2167 of 4500
Fig. 127: Removing Differential Carrier Assy Rear
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
59.INSTALL REAR DIFFERENTIAL CARRIER COVER
a. Clean the seal packing attached on the differential carrier and carrier cover using a scraper and wire
brush. Then remove the oil with white gasoline or equivalent.
b. Install the rear differential breather plug oil deflector to the rear differential carrier cover.
D: Torque: 7.0 N.m (70 kgf.cm, 62 ft.lbf)
Page 2168 of 4500
Fig. 128: Installing Rear Differential Breather Plug Oil Deflector To Rear Differential
Carrier Cover
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Apply seal packing 1281 to the differential carrier at the position shown in the illustration.
Page 2169 of 4500
Fig. 129: Applying Seal Packing To Differential Carrier
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Install the differential carrier cover with the 8 bolts.
Torque: 47 N.m (475 kgf.cm, 35 ft.lbf)
e. Install the rear differential breather plug.
Torque: 21 N.m (210 kgf.cm, 15 ft.lbf)
Page 2170 of 4500
Fig. 130: Installing Differential Carrier Cover
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
60.INSTALL REAR DIFFERENTIAL MOUNT CUSHION NO.1
a. This procedure is required only when replacing the rear differential mount.
b. Using SST, install the rear differential mount.
SST 09570-24010, 09316-12010
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