Page 475 of 1395
Synchro Sleeve, Synchro Hub
Inspection
1.Inspect gear teeth on all synchro hubs and synchro
sleeves for rounded off corners, which indicate
Install each synchro hub in its mating synchro
sleeve, and check for freedom of movement.
NOTE: lf replacement is required, always replace
the synchro sleeve and synchro hub as a set.
SYNCHROSLEEVE
SYNCHBOHUB
13-36
LONGER ?EETH
Installation
When assembling the synchro sleeve and synchro hub,
be sure to match the three sets of longer teeth ('120
degrees apart) on the synchro sleeve with the three sets
of deeper grooves in the synchro hub. Do not installthe
synchro sleeve with its longer teeth in the lsv2nd syn-
chro hub slots because it will damage the spring ring.
SYNCHRO
SYNCHBOSI.EEVE
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Page 476 of 1395

Synchro Ring, Gear
Inspection
Inspect the synchro ring and gear.
Ar lnspect the inside of the synchro ring for wear.
B: lnspect the synchro sleeve teeth and matching
teeth on the synchro ring for wear (rounded of0.
CCGOOO WORN
Cr Inspect the synchro sleeve teeth and matching
teeth on the gear tor wear (rounded off).
,,
u (-l
GOOO WORN
D: Inspect the gear hub thrust surface for wear.
E: Inspect the cone surface lor wear and roughness.
F: Inspect the teeth on all gears for uneven wear,
scoring, galling, and cracks.
2. Coat the cone surface of the gear with oil, and place
the synchro ring on the matching gear. Rotate the
synchro ring, making sure that it does not slip.
Measure the clearance between the synchro ring
and gear allthe way around.
NOTE: Hold the synchro ring against the gear even-
ly while measuring the clearance.
Synchro Ring-to-Gear Clearance
Standard: 0.85 - 1.10 mm (0.033 - 0.0,lil in)
Service Limit: 0.,1 mm 10.02 inl
Double Cone Synchro-lo-Goar Clearance
Standard:
@: {Outer Synchro Ring to Synchto Conel
0.5 - 1.0 mm (0.02 - 0.04 in)
€): {synchro cone to Geal)
0.5 - 1.0 mm (0.02 - 0.0i1inl
@: louter Synchro Ring to Gearl
0.95 - 1.68 mm (0.037 - 0.056 inl
Service Limit:
@: 0.3 mm (0.01 inl
@: 0.3 mm {0.01 in}
@: 0.6 mm {0.02 in)
lf the clearance is less than the service limit, replace
the synchro ring and synchro cone.
SYNCHRO SPRING
SYNCHRO
1.
OUTER SYNCHRO RING
13-37
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Page 484 of 1395

O TRANSFER HOUSING
@ O-RING Replace.
O DAMPER HUB
G) NEEDLE BEARING
G) TRANSFER DRIVEN GEAR
G) TRANSFER SHAFT
O TAPERED ROLLER BEARING OUTER RACE
@ TAPERED ROLLER BEARING
€) TRANSFER SHAFT COLLAR
@ THRUST SHIM, 25 mm selective part
6D TRANSFER DRIVE GEAR (HYPOID GEAR)
@ CONICAL SPRING WASHER RePlace
GD TRANSFER SHAFT LOCKNUT.22 x 1.25 mm Left-hand threads, replace'
E) TAPERED ROLLER BEARING
@ TAPERED ROLLER BEARING OUTER RACE
@ THRUST sHlM. 68 mm selective part
O o.RlNG Replace.
@ TRANSFER COVER A
GD TRANSFER COVER B
@ O-RING Replace.
€) TRANSFER DRIVEN GEAR SHAFT (HYPOID GEAR}
@ THRUST SHIM, 35 mm Selective Part
@ TAPERED ROLLER BEARING
@ TRANSFEB SPACEB RepIace.
@ TAPERED ROLLER BEARING OUTER RACE
@ TAPERED ROLLER BEARING OUTER RACE
@) TAPERED ROLLER BEARING
@ olL SEAL Replace.
@ COMPANION FLANGE
@ O-RING Replace.
@ BACK-UP RING
@ coNtcAL SPRING WASHEB Replace.
(o TRANSFER DRIVEN GEAR SHAFT LOCKNUT,22 x 1.25 mm Replace.
TOROUE SPECIFICATIONS
Boh/Nut No.Torque ValueSizeRemarks
6A
8C
22L
22H
12 N.m (1.2 kgf.m.8.7 lbf.ft)
24 N.m {2.4 kgf.m, 17 lbf'ft)
118 N.m (12.0 kgf.m, 86.8 lbf'ftl
132 - 216 N.m (13.5 - 22.0 kgf'm,
97.6 - 159 lbf.ft)
6x1.0mm
8 x 1.25 mm
22 x 1 ,25 mm
22 x 1 .25 mm
Transfer shaft locknut:
Lett-hand threads
Transfer driven gear shaft locknut
Tightening torque: dePending on
Total Starting Torque vaiue
13-45
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Page 487 of 1395
Transfer Assembly
Disassembly (cont'd)
Secure the transfer housing in a bench vise withsoft jaws.
COMPANION FLANGEHOLDER07RAA -
Install the special tool on the companion flange,then loosen the transfer driven gear shaft locknut.
Remove the transfer driven gear shaft locknut, coni-cal spring washer, back-up ring, O-ring, and com-psnion flange.
7.
TRANSFER DRIVENGEAR SHAFT LOCKNUTReolace,
13-48
9. Remove the transfer driven gear shaft, then removethe transfer spacer from the transfer driven gearshaft.
TRANSFER ORIVENGEAR SHAFT
Remove the oil seal and the tapered roller bearingfrom the transfer housing,
OIL SEALReplace.
TAPEREO ROLIIRAEARING
TRANSFER HOUSING
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Page 492 of 1395

Transter Gear Backlash Inspection and Transfer Gear
Tooth Contaqt Inspection
2. lnstall the 35 mm thrust shim on the transfer driven
gear shaft, then install the tapered roller bearing
using the special tools and a press.
NOTE: Use old lransfer spacer for bearing installa-
tion, then discard it.
TRANSFER DRIVENG€AR SHAFT
Install the bearing outer race, then the tapered bear-
ing on the companion flange side ot the transfer
housing.
3.
OIL SEAL DRIVERATTACHMENT07JAD - PH80101DRIVER077/tg - 001qt00
Replace.TAPERED ROLLERBEARING
Install the new oil seal on the transfer housing
using the special tools.
5. Install the transfer driven gear shaft in the transfer
housing. Do not install the transfer spacer on the
transfer driven gear shaft in this step.
TRANSFERHOUSING
Installthe companion flange. conical spring washer,
and locknut on the transfer driven gear shaft. Do
not install the O-ring and the back-up ring on the
transfer gear shaft in this step.
6,
COMPANIONFLANGE
CONICAL SPRING
direction.
(cont'd)
13-53
TRANSFER HOUSING
WASHER
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Page 493 of 1395

Transfer Assembly
Reassembly (cont'd)
7.Secure the transfer housing in a bench vise with
soft jaws, then install the special tool on the com-
panion flange. To prevent damage to the transfer
housing, always use soft jaws or equivalent materi-
als between the transfer housing and the vise.
COMPANION FLANGEHOLDER07RAB - 0020000
WRENCH
8. Tighten the locknut while measuring the starting
torque so the starting torque is within 0.98 - 1.39
N.m {10.0 - 14.2 kgf.cm. 8.68 - 12.3 lbf.in).
NOTE:
. Coat the threads of the locknut, and the shaft
with MTF before installing the locknut.
. Do not stake the locknut in this step.
STARTING TOROUE:
0.98 - 1.39 N.m(10.0 - 14.2 kgf.cm, 8.68 - 12.3 lbf.in)
9.Install the transfer shaft assembly in the transfer
housing, then install the tapered roller bearing,
transfer shaft collar,25 mm thrust shim, transfer
drive gear, conical spring washer, and locknut on
the transfer shaft.
NOTE:
. Coat the threads of the locknut, and the shaft
with MTF before installing the locknut.
. Do not stake the locknut in this step.
TRANSFER SHAFTASSEMBLY
TRANSFER
THRUST SHIM.25 mmSelective part
COLLAR
TRANSFER DRIVEGEAR
CONICAL SPRINGWASHERReplace.Replace.
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Page 496 of 1395

20. Remove the parts on the transfer shaft, and remove
the transfer shatt from the transfer housinq.
TRANSFER SHAFT
TRANSFER HOUSING
TAPERED ROLLERBEARING
TRANSFER SHAFTCOLLAR
TMNSFER DRIVEGEAR
THRUST SHIM, 25 mmSelective part
CONICAL SPRINGWASHERReplace.
LOCKNUTReplace.
Transter Driven Gear Shaft Starting Torque Inspection
and Adlustment
21. Secure the transfer housing in a bench vise with
soft iaws.
Install the special tool on the companion flang€,
then remove the transfer driven gear shaft locknut
and the conical spring washer.
COMPANION FLANGE HOLDER
22.
BACK.UP
Remove the transter driven gear shaft and the com-
panion flange.
Install the new transfer spacer on the transfer dri-
ven gear shaft, then install them in the transfer
housing.
TRANSFER DRIVENGEAR SHAFTTRANSFER SPACERInstall in this direction.TRANSFER
25.Install the companion flange, O-ring, back-up ring,
conical spring washer and locknut on the transfer
driven gear shaft.
NOTE:
. Coat the threads of the locknut, O-ring and trans-
fer shaft with MTF before installing the locknut.
. Install the conical spring washer in the direction
shown.
TRANSFER HOUSING
O.RING
COMPANIONFLANGECONICAL SPRINGWASHERReplace.
LOCKNUTReplace.
(cont'd)
13-57
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Page 497 of 1395

Transfer Assembly
Reassembly (cont'dl
26. Secure the transfer housing in a bench vise with
soft jaws.
COMPANION FLANGE HOLDER07RAB - 002tD00
27. Install the special tool on the companion flange.
then tighten the transfer driven gear shaft locknut
while measuring the starting torque of the transfer
driven gear shaft.
STARTING TOROUE:
0.98 - 1.39 N.m
{10.0 - 1i1.2 kgf.cm, 8.68 - 12.3 lbf in}
TIGHTENING TOROUE:
132 - 216 N.m
(13.5 - 22.0 kgf.m, 97.6 - 159 lbf.ft)
NOTE:
. Rotate the companion flange several times to
seat the tapered roller bearing, then measure the
startrng torque.
. lf the starting torque exceeds 1.39 N.m (14.2
kgf.cm, 12.3 lbf.in), .eplace the transfer spacer
and reassemble the parts. Do not adjust the
torque with the locknut loose.
. lf the tightening torque exceeds 216 N.m (22.0
kgf.m, 159 lbf'ft), replace the transfer spacer and
reassemble the parts.
. Write down the measurement of the starting
torque: it is used to measure the total starting
torque.
28. Stake the locknut into the transfer driven oear shaft
using a 3.5 mm punch.
0.7 - 1.2 mm(0.03 - 0.05 inl
Point to bestaked.
Install the transfer shaft assemblv in the transfer
housing, then install the tapered roller bearing,
transfer shaft collar, 25 mm thrust shim, transfer
drive gear, conical spring washer, and transfer shaft
locknut on the transfer shaft.
NOTE:
. Coat the threads of the locknut and transfer shaft
with MTF before installing the locknut.
. lnstall the conical spring washer in the direction
snown.
TMNSFER SHAFTASSEMBLY
TRANSFER HOUSING
TAPERED ROLLERBEARING
TRANSFER SHAFTCOLLAR
TRANSFER DRIVEGEAR
PUNCH3.0-3.5 mm10.12 - 0.1a inl
THRUST SHIM, 25 mmSelective part
CONICAL SPRINGWASHEBReplace.
LOCKNUTReplace.
29.
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