1996 TOYOTA LAND CRUISER Preload

Z06898
SA2458
Matchmarks
SA2467SST
Z10281SST
SA2308
−
SUSPENSION AND AXLE FRONT DIFFERENTIAL CARRIER
SA−41
1996 LAND CRUISER (RM451U)
14. w/o DIFFERENTIAL LOCK:
INSTALL ADJUSTING NUTS
Install the adjusting nuts on the carrier , making sure the nuts are
threaded properly.
15. INSTALL BEARING CAPS
Align the matchmarks on the cap and carrier. Screw in the 2
bearing cap bolts 2 or 3 turns and press down the bearing cap
by hand.
HINT:
If the bearing cap does not fit tightly on the carrier , the adjusting
nuts are not threaded properly.
Reinstall the adjusting nuts if necessary.
16. ADJUST SIDE BEARING PRELOAD
(a) Torque the 4 bearing cap bolts to the specified torque, and loosen them to the point where the adjusting nuts can
be turned by SST.
SST 09504−00011
Torque: 78 N·m (800 kgf·cm, 58 ft·lbf)
(b) Fully tighten the 4 bearing cap bolts by hand.
(c) Using the SST, torque the adjusting nut on the ring gear side until the ring has a backlash of about 0.2 mm (0.008
in.).
(d) With turning the ring gear, use the SST to fully tighten the adjusting nut on the drive pinion side. After the bearings
are settled, loosen the adjusting nut on the drive pinion
side.
(e) Place a dial indicator on the top of the adjusting nut on the ring gear side.
(f) Adjust the side bearing for zero preload by tightening the
other adjusting nut until the pointer on the indicator be-
gins to move.
(g) Torque the adjusting nut 1 − 1.5 notches from the zero preload position.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

SA2443SST
SA2403
SA2463
FA2013
Proper ContactHeel Contact
Face Contact
Select an adjusting washer that will bring the drive
pinion closer to the ring gear.
Select an adjusting washer that will shift the drive
pinion away from the ring gear.
Toe Contact
Flank Contact
SA−42
−
SUSPENSION AND AXLE FRONT DIFFERENTIAL CARRIER
1996 LAND CRUISER (RM451U)
(h) Using a dial indicator, adjust the ring gear backlash until
it is within the specification.
Backlash: 0.13 − 0.18 mm (0.0051 − 0.0071 in.)
HINT:
The backlash is adjusted by turning the left and right adjusting
nuts equal amounts. For example, loosen the nut on the left
side one notch and torque the nut on the right side one notch.
(i) Torque the 4 bearing cap bolts. Torque: 78 N·m (800 kgf·cm, 58 ft·lbf)
(j) Recheck the ring gear backlash. Backlash: 0.13 −0.18 mm (0.0051 −0.0071 in.)
(k) Using a torque wrench, measure the preload. Total preload (at starting):
Drive pinion preload plus
0.4 − 0.6 N·m (4 − 6 kgf·cm, 3.5 − 5.2 in.·lbf)
17. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION
(a) Coat 3 or 4 teeth at 3 different positions on the ring gear with red lead.
(b) Hold the companion flange firmly and rotate the ring gear
in both directions.
(c) Inspect the tooth pattern.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

SA2390
SST
SA2403
SA2471
SA−44
−
SUSPENSION AND AXLE FRONT DIFFERENTIAL CARRIER
1996 LAND CRUISER (RM451U)
(b) Install the plate washer and a new nut.
HINT:
Coat the threads of a new nut with gear oil.
(c) Using SST to hold the flange, tighten the nut.
SST 09330−00021
Torque: 196 N·m (2,000 kgf·cm, 145 ft·lbf)
24. ADJUST DRIVE PINION PRELOAD
Using a torque wrench, measure the preload of the backlash
between the drive pinion and ring gear. Preload (at starting):
New bearing:
0.9 − 1.6 N·m (10 − 16 kgf·cm, 8.7 − 13.9 in.·lbf)
Reused bearing:
0.5 − 0.8 N·m (5 − 8 kgf·cm, 4.3 − 6.9 in.·lbf)
If the preload is greater than the specification, replace the bear-
ing spacer.
If the preload is less than the specification, retighten the nut a
little at a time with a torque of 13 N·m (130 kgf·cm, 9 ft·lbf) until
the specified preload is reached. Maximum torque: 343 N·m (3,500 kgf·cm, 253 ft·lbf)
If the maximum torque is exceeded while retightening the nut,
replace the bearing spacer and repeat the preload procedure.
Do not back off the pinion nut to reduce the preload.
25. RECHECK RING GEAR BACKLASH
26. RECHECK TOOTH CONTACT BETWEEN RING GEAR
AND DRIVE PINION
27. CHECK RUNOUT OF COMPANION FLANGE
28. STAKE DRIVE PINION NUT
29. INSTALL ADJUSTING NUT LOCKS
(a) Install 2 new nut locks on the bearing caps. Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)
(b) After tightening bolts, bend the nut locks.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

SA1VB−01
R08001
Lock Nut Mark
Axle Housing
Mark
−
SUSPENSION AND AXLE REAR AXLE HUB
SA−69
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL REAR AXLE HUB
(a) Clean the hub installation position of the axle housing and
apply MP grease thinly.
(b) Place the axle hub to the axle housing.
NOTICE:
Be careful not to damage the oil seal.
(c) Install the outer bearing.
2. INSTALL LOCK NUT PLATE AND REAR AXLE BEAR- ING LOCK NUT
(a) Place the lock nut plate on the axle housing, making sure
the tongue lines up with the key groove.
(b) Temporarily install the lock nut.
3. INSTALL DISC
Install the disc to the rear axle hub and temporarily install the
2 hub nuts.
4. ADJUST PRELOAD
(a) Using SST, torque the bearing lock nut.SST 09509−25011
Torque: 59 N·m (600 kgf·cm, 43 ft·lbf)
(b) Make the bearing smooth by turning the hub several
times.
(c) Using the SST, retighten the bearing lock nut. Torque: 59 N·m (600 kgf·cm, 43 ft·lbf)
(d) Using the SST, loosen the nut until it can be turned by
hand.
(e) Using a spring tension gauge, check the preload and tighten the nut until the preload is within the specification.
Preload (at starting):
26−57 N (2.6−5.8 kgf, 5.7−12.8 lbf)
NOTICE:
Make sure that there is no contact with the parking brake
shoe.
(f) Align the mark on the bearing lock nut and tip of axle housing under the above preload range.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

SA2395
SST
Z06903
SST
Z06904
SST
R13238
SST
SA1966
SST
SA−74
−
SUSPENSION AND AXLE REAR DIFFERENTIAL FRONT OIL SEAL
1996 LAND CRUISER (RM451U)
6. REMOVE BEARING OUTER RACE
Using SST, remove the bearing outer race.
SST 09308−00010
NOTICE:
Do not scratch the taper surface of the outer race.
7. REMOVE BEARING SPACER
8. INSTALL NEW BEARING SPACER
9. INSTALL BEARING OUTER RACE
Using SST, install the bearing outer race. SST 09316−60011 (09316 −00011, 09316−00021)
10. INSTALL FRONT BEARING
11. INSTALL OIL SLINGER AND OIL SEAL
(a) Install the oil slinger.
(b) Using SST, install a new oil seal, as shown. SST 09214−76011
Oil seal drive in depth: 1.0 mm (0.039 in.)
(c) Apply MP grease to the oil seal lip.
12. INSTALL COMPANION FLANGE
(a) Using SST, install the companion flange on the drive pin- ion.
SST 09950−30010 (09951 −03010, 09953−03010,
09954 −03010, 09955 −03030, 09956−03020)
(b) Place the plate washer on the companion flange.
(c) Apply light coat of gear oil on threads of a new companion
flange nut.
(d) Using SST to hold the flange, torque the nut. SST 09330−00021
Torque: 245 N·m (2,500 kgf·cm, 181 ft·lbf)
13. ADJUST DRIVE PINION PRELOAD (See page SA−73 )
14. STAKE DRIVE PINION NUT
15. CONNECT REAR PROPELLER SHAFT (See page PR−5 )
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

W00493
30 mm
(1.18 in.)
SA1VH−04
SA2446
SA−80
−
SUSPENSION AND AXLE REAR DIFFERENTIAL CARRIER
1996 LAND CRUISER (RM451U)
DISASSEMBLY
1. CHECK RUNOUT OF COMPANION FLANGE
Using a dial indicator, measure the vertical and lateral runout of
the companion flange. Maximum runout: 0.10 mm (0.0039 in.)
2. CHECK RING GEAR RUNOUT
Using a dial indicator, measure the ring gear runout. Maximum runout: 0.10 mm (0.0039 in.)
If the runout is greater than the maximum, replace the ring gear.
3. CHECK RING GEAR BACKLASH
Using a dial indicator, measure the ring gear backlash. Backlash: 0.15 − 0.20 mm (0.0059 − 0.0079 in.)
HINT:
Perform the measurements at 3 or more positions around the
circumference of the ring gear.
If the backlash is not within the specification, adjust the side
bearing preload or repair as necessary.
4. MEASURE DRIVE PINION PRELOAD
(a) Using a torque wrench, measure the preload of backlash between the drive pinion and ring gear.
Preload (at starting):
0.7 − 1.0 N·m (7 − 10 kgf·cm, 6.1 − 8.7 in.·lbf)
(b) Using a torque wrench, measure the preload. Total preload (at starting):
Drive pinion preload plus
w/o Differential lock
0.4 − 0.6 N·m (4 − 6 kgf·cm, 3.5 − 5.2 in.·lbf)
w/ differential lock
0.3 − 0.7 N·m (3 − 7 kgf·cm, 2.6 − 6.1 in.·lbf)
If necessary, disassemble and inspect the differential.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

SA2425
SSTSST
Front
Rear
SA3102
SST
R13414
SST
SA−90
−
SUSPENSION AND AXLE REAR DIFFERENTIAL CARRIER
1996 LAND CRUISER (RM451U)
(g) After the ring gear cools down enough, tighten the set
bolts uniformly and a little at a time.
Torque: 110 N·m (1,125 kgf·cm, 81 ft·lbf)
6. CHECK RING GEAR RUNOUT
(a) Install the differential case onto the carrier and tighten the
adjusting nut just to where there is no play in the bearings.
(b) Using a dial indicator, check the ring gear runout. Maximum runout: 0.10 mm (0.0039 in.)
(c) Remove the differential case.
7. INSTALL DRIVE PINION FRONT AND REAR BEARING
OUTER RACES
(a) Front side: Using SST and a press, install the 2 outer races.
SST 09950−60020 (09951 −00710),
09950 −70010 (09951 −07150)
(b) Rear side: Using SST and a press, install the 2 outer races.
SST 09950−60020 (09951 −00890),
09950 −70010 (09951 −07150)
8. INSTALL DRIVE PINION REAR BEARING
(a) Install the washer on the drive pinion.
HINT:
First fit a washer with the same thickness as the washer which
was removed, then after checking the tooth contact pattern, re-
place the washer with one of a different thickne ss if necessary.
(b) Using SST and a press, install the rear bearing onto the drive pinion.
SST 09506−35010
9. TEMPORARILY ADJUST DRIVE PINION PRELOAD
(a) Install the drive pinion and front bearing.
HINT:
Assemble the spacer and oil seal after adjusting the gear con-
tact pattern.
(b) Install the oil slinger.
(c) Install the companion flange with SST. SST 09550 −30010 (09951 −03010, 09953 −03010,
09954 −03010, 09955 −03030, 09956−03020)
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010

SA2450
SST
SA2446
R08261
R08262
−
SUSPENSION AND AXLE REAR DIFFERENTIAL CARRIER
SA−91
1996 LAND CRUISER (RM451U)
(d) Adjust the drive pinion preload by tightening the compan-
ion flange nut.
Using SST to hold the flange, tighten the nut.
SST 09330−00021
NOTICE:
Coat the nut and screw of the drive pinion with gear oil. As
there is no spacer, tighten a little at a time, being careful not
to overtighten.
(e) Using a torque wrench, measure the preload. Preload (at starting):
New bearing
1.3 − 2.0 N·m (13 − 20 kgf·cm, 11.3 − 17.4 in.·lbf)
Reused bearing
0.7 − 1.0 N·m (7 − 10 kgf·cm, 6.1 − 8.7 in.·lbf)
HINT:
Measure the total preload after first turning the bearing clock-
wise and counterclockwise several times to make the bearing
smooth.
10. w/o DIFFERENTIAL LOCK: INSTALL DIFFERENTIAL CASE IN CARRIER
(a) Place the 2 bearing outer races on their respective bear- ings. Make sure that the left and right outer races are not
interchanged.
(b) Install the case in the carrier.
HINT:
Make sure that there is backlash between the ring gear and
drive pinion.
11. w/ DIFFERENTIAL LOCK: INSTALL DIFFERENTIAL CASE IN CARRIER
(a) Place the 2 bearing outer races on their respective bear- ings. Make sure that the left and right races are not inter-
changed.
(b) Install the assembled plate washer onto the side bearing.
(c) Install the differential case in the carrier.
(d) Make the plate washer and bearing smooth by tapping on
the ring gear with a plastic hammer.
HINT:
If it is difficult to install the differential case into the carrier, re-
place the plate washer with a thinner one.
However, select a plate washer that allows no clearance be-
tween it and the carrier.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.11 - 03/16/2010