NISSAN PICK-UP 1998 Repair Manual

2. Install auto-lock free-running hub assembly to wheel hub.
lWhen installing auto-lock free-running hub assembly, be
sure to align outer brake pawl with notch in spindle.
lAfter inserting auto-lock free-running hub assembly into bore
in wheel hub, make sure there is no clearance between hub
assembly and wheel hub.
Wheel Hub and Rotor Disc
REMOVAL AND INSTALLATION
1. Remove free-running hub assembly. Ð 4WD Ð
Refer to ``Auto-lock Free-running Hub Ð 4WD Ð'', FA-15, or
``Manual-lock Free-running Hub Ð 4WD Ð'', FA-14.
2. Remove brake caliper assembly without disconnecting
hydraulic line.
Be careful not to depress brake pedal, or piston will pop out.
Make sure brake hose is not twisted.
3. Remove lock washer. Ð 4WD Ð
4. Remove wheel bearing lock nut.
2WD: With suitable tool
4WD: With Tool
5. Remove wheel hub and wheel bearing.
Be careful not to drop outer bearing.
6. After installing wheel hub and wheel bearing, adjust wheel
bearing preload.
Refer to ``PRELOAD ADJUSTMENT'', ``Front Wheel
Bearing'', ``ON-VEHICLE SERVICE'', FA-5.
SFA864B
SFA825B
SFA364B
SFA826B
SFA827B
FRONT AXLE
Installation (Cont'd)
FA-16

DISASSEMBLY
lRemove bearing outer races with suitable brass bar.
INSPECTION
Thoroughly clean wheel bearings and wheel hub.
Wheel bearings
lMake sure wheel bearings roll freely and are free from noise,
cracks, pitting and wear.
Wheel hub
lCheck wheel hub for cracks by using a magnetic exploration
or dyeing test.
ASSEMBLY
1. Install bearing outer race with Tool until it seats in hub.
2. Install the sensor rotor using suitable drift and press. (Mod-
els with ABS)
Always replace sensor rotor with new one.
Pay attention to the direction of front sensor rotor as shown
in figure.
3. Pack multi-purpose grease in wheel hub and hub cap.
FA858
SFA943-B
SBR400DA
AFA122
FRONT AXLE
Wheel Hub and Rotor Disc (Cont'd)
FA-17

4. Apply multi-purpose grease to each bearing cone.
5. Pack grease seal lip with multi-purpose grease, then install
it into wheel hub with suitable drift.
Knuckle Spindle
REMOVAL
1. Remove free-running hub assembly. Ð 4WD Ð
Refer to ``Auto-lock Free-running Hub Ð 4WD Ð'', FA-15, or
``Manual-lock Free-running Hub Ð 4WD Ð'', FA-14.
2. Remove wheel hub and rotor disc.
Refer to ``Wheel Hub and Rotor Disc'', FA-16.
3. Separate drive shaft from knuckle spindle by slightly tapping
drive shaft end. Ð 4WD Ð
4. Separate tie-rod from knuckle spindle with Tool.
Install stud nut conversely on stud bolt so as not to damage
stud bolt.
5. Separate knuckle spindle from ball joints.
a. Loosen (do not remove) upper and lower ball joint tightening
nuts.
SFA459B
SFA828B
SFA844
SFA840-B
SFA829B
FRONT AXLE
Wheel Hub and Rotor Disc (Cont'd)
FA-18

b. Separate knuckle spindle from upper and lower ball joint
studs with Tool.
During above operation, never remove ball joint nuts which
are loosened in step (a) above.
Tool:
2WD
ST29020001
4WD
HT72520000
c. Remove ball joint tightening nuts.
Support lower link with jack.
d. Remove knuckle spindle from upper and lower links.
INSPECTION
Knuckle spindle
lCheck knuckle spindle for deformation, cracks and other
damage by using a magnetic exploration or dyeing test.
Bearing spacer Ð 2WD Ð
lCheck bearing spacer for damage.
Needle bearing Ð 4WD Ð
lCheck needle bearing for wear, scratches, pitting, flaking and
burn marks.
INSTALLATION
1. Install needle bearing into knuckle spindle. Ð 4WD Ð
Make sure that needle bearing is facing in the proper direc-
tion.
Apply multi-purpose grease.
2. Install knuckle spindle to upper and lower ball joints with
lower link jacked up.
CAUTION:
Make sure that oil and grease do not come into contact with
tapered areas of ball joint, knuckle spindle and threads of
ball joint.
3. Connect tie-rod to knuckle spindle.
SFA079
SFA830B
SFA962
SFA831B
FRONT AXLE
Knuckle Spindle (Cont'd)
FA-19

4. After installing knuckle spindle, adjust wheel bearing preload.
Refer to ``PRELOAD ADJUSTMENT'', ``Front Wheel
Bearing'', ``ON-VEHICLE SERVICE'', FA-5.
5. After installing drive shaft, check drive shaft axial end play.
Do not reuse snap ring once it has been removed.
Refer to ``Drive Shaft Ð 4WD Ð'', FA-21.
SFA369B
FRONT AXLE
Knuckle Spindle (Cont'd)
FA-20

Drive Shaft Ð 4WD Ð
REMOVAL
1. Remove free-running hub or drive flange and snap ring.
Refer to ``Auto-lock Free-running Hub Ð 4WD Ð'', FA-15, or
``Manual-lock Free-running Hub Ð 4WD Ð'', FA-14.
2. Remove torsion bar spring. Refer to ``Torsion Bar Spring'',
``FRONT SUSPENSION'', FA-28.
3. Remove shock absorber lower fixing bolt.
4. Remove lower link, fixing bolts.
Support lower link with jack.
5. Remove bolts fixing drive shaft to final drive.
6. Remove drive shaft from knuckle spindle by slightly tapping
end of drive shaft.
SFA874-B
SFA832B
SFA236
SFA833B
FRONT AXLE
FA-21

DISASSEMBLY
Final drive side (TS82F)
1. Remove plug seal from slide joint housing by lightly tapping
around slide joint housing.
2. Remove boot bands.
3. Move boot and slide joint housing toward wheel side, and put
matching marks.
4. Remove snap ring.
5. Detach spider assembly with press.
6. Draw out boot.
Cover drive shaft serration with tape to prevent damaging
the boot.
SFA880
SFA963
SFA964
SFA392
SFA799
FRONT AXLE
Drive Shaft Ð 4WD Ð (Cont'd)
FA-22

Wheel side (ZF100)
CAUTION:
The joint on the wheel side cannot be disassembled.
lBefore separating joint assembly, put matching marks on
drive shaft and joint assembly.
lSeparate joint assembly with suitable tool.
Be careful not to damage threads on drive shaft.
lRemove boot bands.
INSPECTION
Thoroughly clean all parts in cleaning solvent, and dry with com-
pressed air. Check parts for evidence of deformation or other
damage.
Drive shaft
Replace drive shaft if it is twisted or cracked.
Boot
Check boot for fatigue, cracks and wear. Replace boot with new
boot bands.
Joint assembly (Final drive side)
lReplace any parts of double offset joint which show signs of
scorching, rust, wear or excessive play.
lCheck serration for deformation. Replace if necessary.
lCheck slide joint housing for any damage. Replace if neces-
sary.
Joint assembly (Wheel side)
Replace joint assembly if it is deformed or damaged.
ASSEMBLY
lAfter drive shaft has been assembled, ensure that it
moves smoothly over its entire range without binding.
lUse NISSAN GENUINE GREASE or equivalent after every
overhaul.
Final drive side (TS82F)
1. Install new small boot band, boot and side joint housing to
drive shaft.
Cover drive shaft serration with tape to prevent damaging
boot during installation.
SFA455
SFA800
FRONT AXLE
Drive Shaft Ð 4WD Ð (Cont'd)
FA-23

2. Install spider assembly securely, making sure marks are
properly aligned.
lPress-fit with spider assembly serration chamfer facing
shaft.
3. Install new snap ring.
4. Pack with grease.
Specified amount of grease:
95 - 105 g (3.35 - 3.70 oz)
5. Make sure that the boot is properly installed on the drive
shaft groove. Set the boot so that it does not swell or deform
when its length is ``L
1''.
Length ``L
1'': 95 - 97 mm (3.74 - 3.82 in)
6. Lock new large boot band securely with a suitable tool, then
lock new small boot band.
7. Install new plug seal to slide joint housing by lightly tapping
it.
Apply sealant to mating surface of plug seal.
Wheel side (ZF100)
1. Install new small boot band and boot on drive shaft.
Cover drive shaft serration with tape to prevent damaging
boot during installation.
2. Set joint assembly onto drive shaft by lightly tapping it.
Install joint assembly securely, ensuring that marks which
were made during disassembly are properly aligned.
SFA397
SFA460BA
SFA443B
SFA800
SFA884
FRONT AXLE
Drive Shaft Ð 4WD Ð (Cont'd)
FA-24

3. Pack drive shaft with specified amount of grease.
Specified amount of grease:
135 - 145 g (4.76 - 5.11 oz)
4. Make sure that the boot is properly installed on the drive
shaft groove. Set the boot so that it does not swell or deform
when its length is ``L
2''.
Length ``L
2'': 96 - 98 mm (3.78 - 3.86 in)
5. Lock new large boot band securely with a suitable tool.
6. Lock new small boot band.
INSTALLATION
1. Apply multi-purpose grease.
2. Install bearing spacer onto drive shaft.
Make sure that the bearing spacer is facing in the proper
direction.
3. After installing wheel hub and wheel bearing, adjust wheel
bearing preload. Refer to ``PRELOAD ADJUSTMENT'',
``Front Wheel Bearing'', ``ON-VEHICLE SERVICE'', FA-6.
4. When installing drive shaft, adjust drive shaft axial end play
by selecting a suitable snap ring.
a. Temporarily install new snap ring on drive shaft in the same
thickness as it was installed before removal.
b. Set dial gauge on drive shaft end.
c. Measure axial end play of drive shaft.
Axial end play:
0.45 mm (0.0177 in) or less
d. If axial end play is not within the specified limit, select another
snap ring.
1.1 mm (0.043 in) 1.3 mm (0.051 in)
1.5 mm (0.059 in) 1.7 mm (0.067 in)
1.9 mm (0.075 in) 2.1 mm (0.083 in)
2.3 mm (0.091 in)
SFA473BA
SFA887
SFA846
SFA940
SFA847
FRONT AXLE
Drive Shaft Ð 4WD Ð (Cont'd)
FA-25