Lexus RX300 (MCU15). Service manual — part 557
SA198–02
R04465
SST
R02524
Steel Plate
SA–68
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
LEXUS RX300 (RM785E)
REPLACEMENT
1.
REPLACE COMPANION FLANGE DUST DEFLECTOR,
IF NECESSARY
(a)
Using SST and a press, remove the dust deflector.
SST
09950–00020
(b)
Using a press, install a new dust deflector.
2.
REPLACE SIDE GEAR SHAFT DUST COVER, IF NEC-
ESSARY
(a)
Using a screwdriver and hammer, remove the side gear
shaft dust cover.
(b)
Using a steel plate and press, install a new dust cover to
the side gear shaft.
NOTICE:
Be careful not to damage the dust cover.
FA1121
SA21K–01
FA1123
FA1124
SA1143
Boiling Water
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
SA–69
LEXUS RX300 (RM785E)
REASSEMBLY
1.
REASSEMBLE DIFFERENTIAL CASE
(a)
Install the 2 thrust washers on the 2 side gears.
(b)
Install the 2 side gears, 2 pinion gears, 2 pinion gear
thrust washers and pinion shaft in the differential case.
HINT:
Align the holes of the differential case and pinion shaft.
(c)
Measure the side gear backlash while holding 1 pinion
gear toward the differential case.
Backlash: 0.05 – 0.20 mm (0.0020 – 0.0079 in.)
If the backlash is not within the specification, install the 2 side
gear thrust washers with different thicknesses.
HINT:
Refer to the following table to select 2 thrust washers which will
ensure that the backlash is within the specification.
Thrust washer thickness
Thickness mm (in.)
Thickness mm (in.)
0.93 – 0.97 (0.0366 – 0.0382)
1.18 – 1.22 (0.0465 – 0.0480)
0.98 – 1.02 (0.0386 – 0.0402)
1.23 – 1.27 (0.0484 – 0.0500)
1.03 – 1.07 (0.0406 – 0.0421)
1.28 – 1.32 (0.0504 – 0.0520)
1.08 – 1.12 (0.0425 – 0.0441)
1.33 – 1.37 (0.0524 – 0.0539)
1.13 – 1.17 (0.0445 – 0.0461)
1.38 – 1.42 (0.0543 – 0.0559)
(d)
Using a pin punch and hammer, install the straight pin
through the differential case and hole of the pinion shaft.
(e)
Using a chisel and hammer, stake the outside of the differ-
ential case pin hole.
2.
INSTALL RING GEAR ON DIFFERENTIAL CASE
(a)
Clean the contact surfaces of the differential case and
ring gear.
(b)
Heat the ring gear to approx. 100 °C (212 °F) in the boiling
water.
(c)
Carefully take the ring gear out of the boiling water.
(d)
After the moisture on the ring gear has completely evapo-
rated, quickly install the ring gear to the differential case.
F03758
Matchmarks
F03759
SST
F03760
SA–70
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
LEXUS RX300 (RM785E)
(e)
Align the matchmarks on the ring gear and differential
case.
(f)
Temporarily install the 4 new lock plates and 8 bolts.
(g)
After the ring gear cools down enough, torque the 8 bolts
uniformly at a time.
Torque: 97 N·m (985 kgf·cm, 71 ft·lbf)
(h)
Using a chisel and hammer, stake the 4 lock plates.
HINT:
Stake one claw so that it is flush with the flat surface of the bolt.
For the claw contacting the protruding portion of the bolt, stake
only the half on the tightening side.
3.
INSTALL SIDE BEARINGS
Using SST and a press, install the 2 side bearings into the differ-
ential case.
SST
09710–22021 (09710–01031)
4.
INSPECT RING GEAR RUNOUT
(a)
Install the differential case on the carrier, and install the
2 plate washers so that there is no play in the bearing.
(b)
Install the bearing caps.
(c)
Using a dial indicator, measure the runout of the ring gear.
Maximum runout: 0.07 mm (0.0028 in.)
(d)
Remove the 2 bearing caps, 2 plate washers and differen-
tial carrier.
W01226
SST
SST
Front
Rear
SA3102
SST
F01250
R11163
SST
–
SUSPENSION AND AXLE
REAR DIFFERENTIAL CARRIER
SA–71
LEXUS RX300 (RM785E)
5.
INSTALL FRONT AND REAR BEARING OUTER
RACES
(a)
Front side:
Using SST and a press, install the outer race to the carrier.
SST
09950–60020 (09951–00790),
09950–70010 (09951–07150)
(b)
Rear side:
Using SST and a press, install the outer race to the carrier.
SST
09950–60020 (09951–00710),
09950–70010 (09951–07150)
6.
INSTALL DRIVE PINION REAR BEARING
(a)
Install the removed plate washer on the drive pinion.
(b)
Using SST and a press, install the rear bearing onto the
drive pinion.
SST
09506–30012
7.
TEMPORARILY ADJUST DRIVE PINION PRELOAD
(a)
Install the drive pinion and front bearing.
HINT:
Assemble the spacer, oil slinger and oil seal after adjusting the
gear contact pattern.
(b)
Using SST, install the companion flange.
SST
09950–30011 (09951–03010, 09953–03010,
09954–03010, 09955–03030, 09956–03020)
(c)
Coat the threads of the nut with MP grease.
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