2003 LEXUS LS430 torque

Fig. 112: Installing Companion Flange To Differential Carrier Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
c. Using SST, hold the flange and tighten the nut while observing the preload with SST and
torque wrench.
SST 09229-55010, 09330-00021
Torque: 98 N.m to 490 N.m
(1000 kgf.cm to 5,000 kgf.cm, 72 ft.lbf to 361 ft.lbf)
HINT:
Tighten the nut using approximately 98 N.m (1,000 kgf.cm) of force and then tighten it further
while observin
g the preload.

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)

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:

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.

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)

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)

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)

Fig. 135: Installing Lower Mount Stoppers And Front Side Set Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
d. Using a hexagon wrench (12 mm), install the 3 rear side set hexagon bolts.
Torque: 142 N.m (1,450 kgf.cm, 105 ft.lbf)
e. Torque the 2 front side set bolts.
Torque: 105 N.m (1,065 kgf.cm, 77 ft.lbf)
f. Lower the
jack.