Rear Final Drive: Section
Rear Final Drive: Section
Rear Final Drive: Section
RFD
A
B
SECTION
REAR FINAL DRIVE C
RFD
E
CONTENTS
C200 Checking Differential Gear Oil .................................. 7 F
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000008945323
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution for Servicing Rear Final Drive INFOID:0000000008945324
• Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic
operations.
• Check for the correct installation status prior to removal or disassembly. When matching marks are required,
be certain they do not interfere with the function of the parts they are applied to.
• Overhaul should be done in a clean work area, a dust proof area is recommended.
• Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from
entering into the unit during disassembly or assembly.
• Always use shop paper for cleaning the inside of components.
• Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
• Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them
with new ones if necessary.
• Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
• Clean and flush the parts sufficiently and blow them dry.
• Be careful not to damage sliding surfaces and mating surfaces.
• When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and
foreign materials from the application and mating surfaces.
• In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a
tightening sequence is specified, observe it.
• During assembly, observe the specified tightening torque.
• Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here. B
Tool number Description
(Kent-Moore No.)
Tool name
C
ST3127S000 Measuring pinion bearing preload and total
(See J-25765-A) preload
Preload gauge
1 GG91030000 RFD
(J-25765)
Torque wrench
2 HT62940000
( — ) E
Socket adapter
3 HT62900000 NT124
( — )
Socket adapter F
ST3090S000 Removing and installing drive pinion rear in-
( — ) ner cone
Drive pinion rear inner race puller set a: 79 mm (3.11 in) dia. G
1 ST30031000 b: 45 mm (1.77 in) dia.
(J-22912-01) c: 35 mm (1.38 in) dia.
Puller
2 ST30901000 H
(J-26010-01)
Base NT527
M
NT085
NT528
P
NT090
NT073
NT073
NT115
NT134
NT136
NT127
S-NT014 F
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
RFD-15
RFD-15
RFD-14
RAX-6
MA-9
WT-4
PR-4
BR-4
PS-5
Reference page
—
Companion flange excessive runout
PROPELLER SHAFT
Possible cause and SUSPECTED PARTS
Incorrect backlash
Rough gear tooth
ROAD WHEEL
DRIVESHAFT
STEERING
BRAKES
TIRES
Symptom DIFFERENTIAL Noise × × × × × × × × × × × × ×
×: Applicable
DRAINING B
1. Stop engine.
2. Remove the drain plug from the rear final drive assembly to
drain the differential gear oil. C
3. Install the drain plug with a new gasket to the rear final drive
assembly. Tighten to the specified torque. Refer to RFD-12,
"Component". RFD
CAUTION:
Do not reuse gasket.
E
LDIA0187E
F
FILLING
1. Remove the filler plug from the rear final drive assembly.
2. Fill the rear final drive assembly with new differential gear oil G
until the level reaches the specified level near the filler plug hole.
K
DIFFERENTIAL GEAR OIL LEAKAGE AND LEVEL
1. Make sure that differential gear oil is not leaking from the rear final drive assembly or around it.
2. Check the differential gear oil level from the filler plug hole as L
shown.
CAUTION:
Do not start engine while checking differential gear oil level.
M
3. Install the filler plug with sealant applied on the threads to the
rear final drive assembly. Tighten to the specified torque. Refer
to FFD-11, "Component".
• Use High Performance Thread Sealant or equivalent. Refer to N
GI-45, "Recommended Chemical Product and Sealant".
LDIA0127E O
APD032
SPD737
WPD013
WPD014
APD032
RFD
10. Install rear propeller shaft. Refer to PR-8, "Removal and Installation".
1. Drain gear oil. Refer to MA-22, "Changing Rear Final Drive Oil - C200 (Rear Differential Gear Oil)".
2. Remove rear cover and rear cover gasket.
3. Install new rear cover gasket and rear cover.
4. Tighten rear cover bolts. Refer to RFD-12.
5. Fill final drive with recommended gear oil. Refer to MA-9, "Fluids and Lubricants".
REMOVAL B
CAUTION:
• Do not damage spline, companion flange and front oil seal when removing propeller shaft.
• Before removing final drive assembly or rear axle assembly, disconnect wheel sensor harness con- C
nector from the assembly and move it away from final drive/rear axle assembly area. Failure to do so
may result in sensor wires being damaged and sensor becoming inoperative.
1. Drain the differential gear oil. Refer to MA-22, "Changing Rear Final Drive Oil - C200 (Rear Differential
RFD
Gear Oil)".
2. Remove the rear propeller shaft. Refer to PR-8, "Removal and Installation".
3. Remove the axle shaft. Refer to RAX-8, "Removal". E
4. Disconnect the following components from the rear final drive assembly.
• Brake tube block connectors. Refer to BR-10, "Front and Rear Brake Piping and Hose".
• Wheel sensor harness (if equipped). Refer to BRC-34, "Rear Wheel Sensor and Sensor Rotor" (2WD),
or BRC-70, "Rear Wheel Sensor" (4WD). F
• Parking brake cables. Refer to PB-3, "Removal and Installation".
• Remove LSV. Refer to BR-15, "2WD : Removal and Installation" (2WD), or BR-17, "4WD : Removal and
Installation" (4WD). G
5. Disconnect brake hose from brake tube at the clip on top of rear final drive assembly. Then remove the
metal clip to disconnect brake line from the clip on the rear final drive assembly.
6. Support rear final drive assembly using a suitable jack. H
7. Remove rear shock absorber lower bolts. Refer to RSU-8, "Removal and Installation".
8. Remove leaf spring U-bolt nuts. Refer to RSU-9, "Removal".
9. Remove rear final drive assembly. I
CAUTION:
Secure rear final drive assembly to the jack while removing it.
J
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Fill the rear final drive assembly with differential gear oil after installation. Refer to MA-22, "Changing K
Rear Final Drive Oil - C200 (Rear Differential Gear Oil)".
• Bleed the air from brake system. Refer to BR-7, "Bleeding Brake System".
L
LDIA0019E
RFD
LDIA0020E
Pre-Inspection INFOID:0000000008945333
PD245
SPD196
SPD702
TOOTH CONTACT
RFD
SPD198
SPD714
I
SPD202
M
4. Remove differential case assembly with pry bar.
P
SPD193
NOTE:
SPD745
APD032
SPD014
SPD206
PD349
RFD
7. Remove pinion rear bearing inner cone and pinion height adjust-
ing washer.
E
Tool number : ST30031000 (J-22912-01)
G
PD179
O
SPD529
NOTE: P
SPD022
SPD024
5. Punch off pinion mate shaft lock pin from differential case.
• Lock pin is caulked at pinhole mouth on differential case.
SPD025
SPD643
INSPECTION
Ring Gear and Drive Pinion
Check gear teeth for scoring, cracking or chipping. If any damaged part is evident, replace ring gear and drive
pinion as a set (hypoid gear set).
Differential Case Assembly
SPD584
RFD
Bearing
1. Thoroughly clean bearing.
2. Check bearings for wear, scratches, pitting or flaking. E
Check tapered roller bearing for smooth rotation. If damaged,
replace outer race and inner race as a set.
SPD715
SPD919
L
3. Put the side bearing adjusting shim in place.
CAUTION:
Side bearing adjusting shim is placed on either the right or
M
left depending upon final drive gear ratio. Be sure to place it
on the correct side.
O
SPD894
SPD986
5. Install the side bearing caps in their correct locations using the
matchmarks made during removal, and tighten the bearing cap
bolts to specification. Refer to RFD-12, "Component".
6. Turn the carrier several times to seat the bearings.
SPD526
WDIA0013E
10. Remove the carrier from the final drive housing. Save the
selected adjusting shims for later use during the assembly of the
final drive unit.
PD344
RFD
SPD769
2. Assemble the pinion gear bearings into the pinion preload shim selector Tool, J-34309.
• Front pinion bearing— make sure the J-34309-3 front pinion E
bearing seat is secured tightly against the J-34309-2 gauge
anvil. Then turn the front pinion bearing pilot, J34309-5, to
secure the bearing in its proper position.
• Rear pinion bearing— the rear pinion bearing pilot, J-34309- F
8, is used to center the rear pinion bearing only. The rear pin-
ion bearing locking seat, J-34309-4, is used to lock the bearing
to the assembly. G
SPD197A H
3. Install the pinion rear bearing inner cone into the final drive
housing. Then place the pinion preload shim selector Tool, J-
I
34309-1, on gauge screw assembly.
SPD893
L
4. Assemble the front pinion bearing inner cone and the J-34309-2
gauge anvil. Assemble them together with the J-34309-1 gauge
screw in the final drive housing. Make sure that the pinion height
gauge plate, J-34309-16, will turn a full 360 degrees. Tighten the M
two sections together by hand.
O
SPD199A
SPD770
SPD234A
7. Place the J-34309-11 pinion height adapter onto the gauge plate
and tighten it by hand.
CAUTION:
Make sure all machined surfaces are clean.
SPD208A
SPD211A
2. Install the side bearing caps and tighten the side bearing cap bolts to proper torque. Refer to RFD-12,
"Component".
SPD204A
RFD
5. Correct the pinion height adjusting washer size by referring to
the “pinion head number”.
• There are two numbers painted on the pinion gear. The
E
first one refers to the pinion and ring gear as a matched
set. This number should be the same as the number on
the ring gear. The second number is the “pinion head
height number”. It refers to the ideal pinion height from F
standard for quietest operation.
• Use the following chart to determine the correct pinion
height adjusting washer:
G
SPD542
SPD205A
TOOTH CONTACT
Checking gear tooth contact pattern is necessary to verify correct relationship between ring gear and drive pin-
ion.
SPD199
3. Hold companion flange steady and rotate the ring gear in both
directions.
SPD200
SPD007-B
RFD
G
SPD656
SPD643
K
5. Place differential case on ring gear.
6. Apply Genuine Medium Strength Locking Sealant or equivalent
to ring gear bolts, and install them. L
• Refer to MA-9, "Fluids and Lubricants", RFD-12, "Compo-
nent".
• Tighten bolts in a crisscross pattern. M
Tool number KV10112100 (BT-8653-A)
N
SPD746
PD353
SPD679
SPD377
SPD581
SPD557
SPD222
RFD
7. Install wheel sensor unit and sensor rotor. Refer to RFD-12,
"Component".
E
G
SPD708
8. Insert companion flange onto drive pinion by tapping the companion flange with a soft hammer until fully H
seated.
9. Hold companion flange using a suitable tool and tighten the pin-
ion nut. Refer to RFD-12, "Component". I
The threaded portion of drive pinion and pinion nut should
be free from oil or grease.
APD032
L
10. Tighten the pinion nut by very small degrees until the specified
preload is achieved. When checking the preload, turn the drive
pinion in both directions several times to set the bearing rollers.
Refer to RFD-30, "Inspection and Adjustments". M
O
SPD241
SPD203
SPD558
SPD709
SPD226
SPD196
SPD241
RFD
• If preload is too great, remove the same amount of shim from
each side.
• If preload is too small, add the same amount of shim to each E
side.
• Never add or remove a different number of shims for each
side as it will change ring gear-to-drive pinion backlash.
8. Recheck ring gear-to-drive pinion backlash because increase or F
decrease in thickness of shims will cause change of ring gear-
to-pinion backlash.
G
SPD561
GENERAL SPECIFICATIONS
2WD Models
M/T
Rear final drive C200
Standard Optional
Gear ratio 4.875 4.375
Number of teeth (Ring gear drive pinion) 37/9
Oil capacity (Approx.) (US pt., Imp pt) 1.3 (2 3/4, 2 1/4)
4WD Model
Transmission M/T
Rear final drive C200
Gear ratio 4.625
Number of teeth (Ring gear/drive pinion) 37/8
Oil capacity (Approx.) (US pt, lmp pt) 1.3 (2-3/4, 2-1/4)
*Always check with the Parts Department for the latest parts information.
Differential carrier assembly turning resistance N (kg, lb) 34.3 - 39.2 (3.5 - 4.0, 7.7 - 8.8)
Total preload N·m (kg-cm, in-lb) 1.4 - 2.9 (15 - 29, 13 - 25)
F
Gear ratio 3.700, 4.625 0.13 - 0.18 (0.0051 - 0.0071)
Ring gear-to-drive pinion backlash mm (in)
Gear ratio 4.111 0.10 - 0.15 (0.0041 - 0.0059)
G
DRIVE PINION HEIGHT ADJUSTMENT