TRANSFER ASSEMBLY
TF-71
C
E
F
G
H
I
J
K
L
MA
B
TF
2. Using the drifts, install the selected gear ring bearing adjusting
shim (transfer case side) and gear ring bearing outer race
(transfer case side).
3. Install the oil defense, and tighten the mounting bolts to the
specified torque. Refer to TF-59, "
COMPONENTS" . The clear-
ance between the oil defense and transfer case (dimension A)
should be the following.
CAUTION:
Do not reuse the mounting bolts.
4. Using the drift, drive the transfer case oil seal until it becomes
flush with the case end.
CAUTION:
When checking the total preload torque, measure it with-
out the oil seal, then install the oil seal.
Do not reuse the oil seal.
Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.
5. Apply recommended sealant to filler plug and plug before install-
ing them to the transfer case. Refer to TF-59, "
COMPONENTS"
.
6. Apply recommended sealant to breather tube and install it to the transfer case.
7. Install the drive gear assembly. Refer to TF-71, "
Drive Gear Assembly" .
8. Install the adapter case. Refer to TF-72, "
Adapter Case" .
9. Install the pinion sleeve assembly. Refer to TF-74, "
Pinion Sleeve Assembly" .
10. Check backlash, preload torque, tooth contact, and companion flange runout. Refer to TF-60, "
ASSEM-
BLY INSPECTION" .
CAUTION:
Measure the total preload torque without the oil seal.
Drive Gear Assembly
1. Using the drift, drive the gear ring oil seal into the gear ring.
CAUTION:
Do not reuse the oil seal.
Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.
The oil seal back position after the installation shall be
56.5 mm (2.22 in) from the gear ring end.Tool number : ST30720000
SDIA3171E
Clearance between oil defense and transfer case
Dimension A : 1.0 - 3.5 mm (0.04 - 0.138 in)
TFB0283D
Tool number : ST30720000
SDIA1564E
Tool number : ST33230000
SDIA1809E
TF-72
TRANSFER ASSEMBLY
2. Apply recommended thread locking sealant into the thread hole
for the drive gear.
a. Completely clean and degrease the drive gear back face, thread
holes, and drive gear mounting bolts.
b. Apply recommended thread locking sealant onto the first and
second threads under the thread hole chamfering of the drive
gear on 3 or more different points.
3. Install the drive gear to gear ring, and apply anti-corrosive oil
onto threads and seats on the mounting bolts, and then tighten
to the specified torque. Refer to TF-59, "
COMPONENTS" .
CAUTION:
Temporary installation before tightening the bolts through to the completion of the tightening
should be within 90 seconds.
If the thread locking sealant is applied aside, quickly wipe it off.
4. Apply gear oil to gear ring bearing inner race (transfer case
side). Using the drifts, install gear ring bearing inner race.
5. Apply gear oil to gear ring bearing inner race (adapter case
side). Using the drifts, install gear ring bearing inner race.
6. Install the drive gear assembly to the transfer case.
7. Install the adapter case.
8. Check backlash, preload torque, tooth contact, and companion
flange runout. Refer to TF-60, "
ASSEMBLY INSPECTION" .
CAUTION:
Measure the total preload torque without the oil seal.
Adapter Case
1. Select the gear ring bearing adjusting shim (adapter case side). Refer to TF-69, "SELECTING ADJUST-
ING SHIMS" .
2. Install the oil gutter.
3. Using the drifts, install the selected gear ring bearing adjusting
shim (adapter case side) and gear ring bearing outer race
(adapter case side).
SDIA0541E
Tool number A: ST30720000
B: ST27863000
C: KV40101630
SDIA1566E
Tool number A: ST30720000
B: KV38102510
SDIA1810E
Tool number : ST30720000
SDIA3172E
TRANSFER ASSEMBLY
TF-73
C
E
F
G
H
I
J
K
L
MA
B
TF
4. Using the suitable drift, drive the adapter case oil seal until it
becomes flush with the case end.
CAUTION:
When checking the total preload torque, measure it with-
out the oil seal, then install the oil seal.
Do not reuse the oil seal.
Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of the oil seal.
5. Apply recommended sealant on drain plug and install it to the
adapter case. Refer to TF-59, "
COMPONENTS" .
6. Apply multi-purpose grease lightly and evenly onto an O-ring,
and install it to the adapter case.
CAUTION:
Do not reuse the O-ring.
7. Install the adapter case to the transfer case, and apply anti-cor-
rosive oil onto threads and seats on the mounting bolts. Tighten
to the specified torque.
8. Check backlash, preload torque, tooth contact, and companion
flange runout. Refer to TF-60, "
ASSEMBLY INSPECTION" .
CAUTION:
Measure the total preload torque without the oil seal.
Bolt symbol
Bolt length “ ” mm (in)Tightening torque
N·m (kg-m, ft-lb)
A 35 (1.38)
15.2 (1.6, 11)
B 30 (1.18)
PDIA0922E
SDIA2318E
TRANSFER ASSEMBLY
TF-75
C
E
F
G
H
I
J
K
L
MA
B
TF
9. Using the drift and press in the companion flange.
10. Apply anti-corrosion oil onto threads and seat of the pinion lock
nut and adjust the pinion lock nut tightening torque and pinion
bearing preload torque (P’
1 ), using a preload gauge.
CAUTION:
Do not reuse the pinion lock nut.
Adjust the lower limit of the pinion lock nut tightening torque first.
While confirming the preload torque, tighten pinion lock nut by 5° to 10°. Because preload will
increase suddenly.
If specified preload torque is exceeded, replace the collapsible spacer and tighten again. Never
loosen the pinion lock nut for further preload torque adjustment.
After the adjustment, rotate the companion flange back and forth 2 to 3 times to check for
unusual noise, rotation malfunction, and other malfunctions.
11. Apply multi-purpose grease lightly and evenly onto an O-ring, and install it to the pinion sleeve.
CAUTION:
Do not reuse the old O-ring.
12. Assemble the selected pinion sleeve shim.
13. Install the pinion sleeve assembly, and apply anti-corrosive oil onto threads and seats on the mounting
bolts. Tighten to the specified torque. Refer to TF-59, "
COMPONENTS" .
14. Check backlash, preload torque, tooth contact and companion flange runout. Refer to TF-60, "
ASSEMBLY
INSPECTION" .
The total preload torque is as follows:Tool number : ST33200000
Pinion lock nut tightening torque
: 128 - 294 N·m (13 - 29 kg-m, 95 - 216 ft-lb)
Pinion bearing preload torque (P’
1 )
: 0.40 - 0.78 N·m (0.04 - 0.08 kg-m, 4 - 6 in-lb)
Total preload torque
With all oil seals installed : P’
1 + 0.45 - 0.47 N·m (0.045 - 0.048 kg-m, 3.9 - 4.1 in-lb)
Without transfer case oil seal and adapter case oil seal
: P’
1 + 0.35 - 0.37 N·m (0.035 - 0.038 kg-m, 3.1 - 3.2 in-lb)
SDIA1811E
TF-76
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEDS000I6
Inspection and AdjustmentEDS0004Y
PRELOAD TORQUE BEFORE DISASSEMBLY
PRELOAD TORQUE AFTER DISASSEMBLY AND REASSEMBLY
BACKLASH
Unit: mm (in)
COMPANION FLANGE RUNOUT
Unit: mm (in)
SELECTIVE PARTS
Gear ring Bearing Adjusting Shim (Transfer Case Side)
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.Applied model QR20DE QR25DE YD22DDTi
Transfer model TY20A
Oil capacity (Approx.) (lmp pt)0.31 (1/2)
Gear ratio0.404
Number of teeth Drive pinion 17
Drive gear 42
Item Specification [N·m (kg-m, in-lb)]
Pinion bearing (P
1 )0.10 - 0.39 (0.01 - 0.04, 1 - 3)
Gear ring bearing to pinion
bearing (Total preload)With all oil seals P
1 + 0.16 - 0.22 (0.016 - 0.023, 1.4 - 1.9)
Without transfer case oil seal and adapter case oil seal P
1 + 0.06 - 0.12 (0.006 - 0.013, 0.6 - 1.1)
Item Specification [N·m (kg-m, in-lb)]
Pinion bearing (P’
1 )0.40 - 0.78 (0.04 - 0.08, 4 - 6)
Gear ring bearing to pinion
bearing (Total preload)With all oil seals P’
1 + 0.45 - 0.47 (0.045 - 0.048, 3.9 - 4.1)
Without transfer case oil seal and adapter case oil seal P’
1 + 0.35 - 0.37 (0.035 - 0.038, 3.1 - 3.2)
Item Specification
Drive gear to drive pinion gear 0.13 - 0.19 (0.0051 - 0.0075)
Item Runout limit
Companion flange face 0.1 (0.004)
Inner side of the companion flange 0.1 (0.004)
Thickness Part number* Thickness Part number* Thickness Part number*
0.80 (0.0315)
0.83 (0.0327)
0.86 (0.0339)
0.89 (0.0350)
0.92 (0.0362)
0.95 (0.0374)
0.98 (0.0386)
1.01 (0.0398)
1.04 (0.0409)
1.07 (0.0421)
1.10 (0.0433)
1.13 (0.0445)
1.16 (0.0457)
1.19 (0.0469)33147 AD300
33147 AD301
33147 AD302
33147 AD303
33147 AD304
33147 AD305
33147 AD306
33147 AD307
33147 AD308
33147 AD309
33147 AD310
33147 AD311
33147 AD312
33147 AD3131.22 (0.0480)
1.25 (0.0492)
1.28 (0.0504)
1.31 (0.0516)
1.34 (0.0528)
1.37 (0.0539)
1.40 (0.0551)
1.43 (0.0563)
1.46 (0.0575)
1.49 (0.0587)
1.52 (0.0598)
1.55 (0.0610)
1.58 (0.0622)
1.61 (0.0634)33147 AD314
33147 AD315
33147 AD316
33147 AD317
33147 AD318
33147 AD319
33147 AD320
33147 AD321
33147 AD322
33147 AD323
33147 AD324
33147 AD360
33147 AD361
33147 AD3621.64 (0.0646)
1.67 (0.0657)
1.70 (0.0669)
1.73 (0.0681)
1.76 (0.0693)
1.79 (0.0705)
1.82 (0.0717)
1.85 (0.0728)
1.88 (0.0740)
1.91 (0.0752)
1.94 (0.0764)
1.97 (0.0776)
2.00 (0.0787)
2.03 (0.0799)33147 AD363
33147 AD364
33147 AD365
33147 AD366
33147 AD367
33147 AD368
33147 AD369
33147 AD370
33147 AD371
33147 AD372
33147 AD373
33147 AD374
33147 AD375
33147 AD376
RFD-1
REAR FINAL DRIVE
D DRIVELINE/AXLE
CONTENTS
C
E
F
G
H
I
J
K
L
M
SECTION RFD
A
B
RFD
REAR FINAL DRIVE
PRECAUTIONS .......................................................... 2
Service Notice or Precautions .................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 6
NVH Troubleshooting Chart ..................................... 6
REAR FINAL DRIVE SYSTEM ................................... 7
Sectional View .......................................................... 7
DIFFERENTIAL GEAR OIL ........................................ 8
Changing Differential Gear Oil ................................. 8
DRAINING ............................................................. 8
FILLING ................................................................. 8
Checking Differential Gear Oil .................................. 8
OIL LEAKAGE AND OIL LEVEL ........................... 8
FRONT OIL SEAL ...................................................... 9
Removal and Installation .......................................... 9
REMOVAL ............................................................. 9
INSTALLATION ..................................................... 9
SIDE OIL SEAL .........................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
ELECTRIC CONTROLLED COUPLING .................. 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13REAR FINAL DRIVE ASSEMBLY ............................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
Components ........................................................... 16
Pre-Inspection ........................................................ 17
TOTAL PRELOAD ............................................... 17
DRIVE GEAR TO DRIVE PINION BACKLASH ... 18
DRIVE GEAR RUNOUT ...................................... 19
COMPANION FLANGE RUNOUT ....................... 19
TOOTH CONTACT .............................................. 19
Disassembly and Assembly .................................... 22
DISASSEMBLY ................................................... 22
ASSEMBLY ......................................................... 25
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 32
General Specification ............................................. 32
Drive Gear Vibration ............................................... 32
Total Preload ........................................................... 32
Side Gear Clearance Adjustment ........................... 32
Drive Pinion Gear Preload Adjustment ................... 32
Side Bearing Preload Adjustment ........................... 32
THRUST WASHER FOR ADJUSTMENT OF SIDE
GEAR BACK CLEARANCE .................................... 32
DRIVE PINION GEAR PRELOAD ADJUSTING
SHIM ....................................................................... 32
ADJUSTING SHIM FOR SIDE BEARING PRE-
LOAD ...................................................................... 33
RFD-2
PRECAUTIONS
PRECAUTIONSPFP:00001
Service Notice or PrecautionsEDS001YY
Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts when applied.
Overhaul should be done in a clean work area, it is preferable to work in dustproof area.
Before disassembly, using steam or white gasoline, completely remove sand and mud from the exterior of
the unit, preventing them from entering into the unit during disassembly or assembly.
Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with a new ones if necessary.
Gaskets, seals and O-rings should be replaced any time when the unit is disassembled.
In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, observe it.
Clean and flush the parts sufficiently and blow-dry them.
Be careful not to damage sliding surfaces and mating surfaces.
When applying sealant, remove the old sealant from the mounting surface; then remove any moisture, oil,
and foreign materials from the application and mounting surfaces.
Always use shop paper for cleaning the inside of components.
Avoid using cotton gloves or shop rags to prevent entering of lint.
During assembly, observe the specified tightening torque, and apply new differential oil, petroleum jelly, or
multi-purpose grease as specified for each vehicle, if necessary.
RFD-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS001Z1
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
Refer to RFD-24, "
INSPECTION
" .
Refer to RFD-19, "
TOOTH CONTACT
" .
Refer to RFD-24, "
INSPECTION
" .
Refer to RFD-18, "
DRIVE GEAR TO DRIVE PINION BACKLASH
" .
Refer to RFD-19, "
COMPANION FLANGE RUNOUT
" .
Refer to RFD-8, "
Checking Differential Gear Oil
" .
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise×××××××××××××