Page 930 of 1449

FRONT AXLE -General Information26-2
GENERAL INFORMATION
The front axle consists of front hubs, knuckles,
wheel bearings and drive shafts, and it has the
following features.
DThe wheel beearing is unit bearing integrated
with hub (Double-row angular contact ball
bearing).
DThe drive shaft incorporates B.J.-T.J. type
constant velocity joints with high transmission
efficiency and low vibration and noise.DABS rotors for detecting the wheel speeds are
press-fitted to the B.J. outer wheels in vehicles
with ABS or ACD.
NOTE
1. B.J.: Birfield Joint
2. T.J.: Tripod Joint
SPECIFICATIONS
ItemSpecifications
Wheel
bearingsWheel bearing typeHub unit bearing (Double-row angular
contact ball bearing)
g
Bearing (outside diameter) mm87*1
Drive
shaft
Joint typeOutsideB.J.
shaftInsideT.J.
Shaft length*2×Shaft diameter mmLeft350×26
Right427×26
NOTE
*1: The wheel beearing is integrated with hub, only the outer diameter is shown.
*2: The shaft length indicates the length between the center points of each joint.
STRUCTURAL DIAGRAM
B.J.T. J . KnuckleOutput shaft Strut assembly
Drive shaft
Wheel bearing Front hubT.J. (L.H.)
Output shaftT.J. (R.H.)
Page 934 of 1449

FRONT AXLE -Hub and Knuckle Assembly26-6
HUB AND KNUCKLE ASSEMBLY
REMOVAL AND INSTALLATION
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to
contact the parts or tools to the caliper because the paint of caliper will be scratched. And if
there is brake fluid on the caliper, wipe out quickly.
Pre-removal and Post-installation Operation
DTransmission Fluid Draining
DTransfer Oil Draining (Refer to GROUP 22 –
On-vehicle Service.)Pre-removal and Post-installation Operation
DCheck the dust cover for cracks or damage by
pushing it with finger.
DTransfer Oil Filling (Refer to GROUP 22 –
On-vehicle Service.)
DTransmission Fluid Filling
25¶5N m
1
245¶29 N m
58
3
4
2
108¶10 N m
10
11
25¶6N m
6
9
100¶10 N m*1
108¶10 N m*2
167¶9N m
8.9¶1.9 N m
*1: Vehicles without BREMBO disc brake
*2: Vehicles with BREMBO disc brake
7
Removal steps
1. Front speed sensor
ACD or ABS>
AA"2. Caliper assembly
3. Brake disc
4. Split pin
AB""AA5. Castle nut
6. Dust shield7. Connection for lower arm ball joint
AC"8. Connection for tie rod end
AD"9. Drive shaft
10. Front strut to hub and knuckle
mounting bolt and nut
11. Hub and knuckle assembly
Page 1027 of 1449
33A-1
FRONT
SUSPENSION
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 3.................
SPECIAL TOOLS 3...........................
ON-VEHICLE SERVICE 4.....................
Wheel Alignment Check and Adjustment 4.......Ball Joint Dust Cover Check 5..................
STRUT ASSEMBLY 6.........................
LOWER ARM ASSEMBLY 9..................
STABILIZER BAR 12.........................
CROSSMEMBER BAR 15.....................
Page 1028 of 1449
FRONT SUSPENSION -General Information33A-2
GENERAL INFORMATION
The front suspension is a McPherson strut with
coil spring. The shock absorber is gas-filled
hydraulic double-acting type.
COIL SPRING
ItemRS ,
RS-IIRS
Wire diameter·average
diameter·free length mm14·155·28114·155·275
CONSTRUCTION DIAGRAM
Stabilizer barCoil spring
Strut assembly
(shock absorber) Crossmember
Lower armStrut insulator
Stabilizer link
Crossmember bar
Lower arm bushing
(pillow ball bushing with rubber)
Page 1029 of 1449

FRONT SUSPENSION -Service Specifications/Special Tools33A-3
SERVICE SPECIFICATIONS
ItemsStandard value
Toe-inAt the centre of tyre tread mm0±2
Toe-angle (per wheel)0_00’±05’
Toe-out angle on turns (inner wheel when outer wheel at 20_)22_00’±1_30’
Steering angleInner wheel31_45’±1_30’
Outer wheel (for reference)27_15’
Camber (Selectable from 2 options)-1_00’±30’* or - 2_00’±30’*
Caster3_55’±30’*
Kingpin inclination13_45’±1_30’
Lower arm ball joint rotation starting torque N·m0.5 - 3.4
Lower arm pillow ball bushing rotation starting torque N·m0.5 - 3.0
NOTE
*: difference between right and left wheels: less than 30’
SPECIAL TOOLS
ToolsNumberNameUse
B
A
A: MB991237
B: MB991238A: Spring
compressor
body
B: Arm setCoil spring compression
BAMB991680
A: MB991681
B: MB991682Wrench set
A: Wrench
B: SocketStrut assembly disassembly and reassembly
MB991006Preload socketLower arm ball joint rotation starting torque
measurement
MB990326Preload socketLower arm pillow ball bushing rotation starting
torque measurement
Page 1031 of 1449

FRONT SUSPENSION -On-vehicle Service33A-5
Tightening torque: 52±2 N·m
3. Confirm that the toe-in is at the standard value.
4. Use a turning radius gauge to check that the steering
angle is at the standard value.
Standard value:
Inner wheels31_45’±1_30’
Outer wheels (for reference)27_15’
TOE-OUT ANGLE ON TURNS
To check the steering linkage, especially after the vehicle
has been involved in an accident or if an accident is presumed,
it is advisable to check the toe-out angle on turns in addition
to the wheel alignment.
Conduct this test on the left turn as well as on the right turn.
Standard value:
ItemsSpecifications
Toe-out angle on turns
(inner wheel when outer wheel at 20_)22_00’±1_30’
CAMBER, CASTER AND KINGPIN INCLINATION
Standard value:
ItemsSpecifications
Camber
(Selectable from 2 options)-1_00’±30’* or - 2_00’±30’*
Caster3_55’±30’*
Kingpin inclination13_45’±1_30’
NOTE
1. *: difference between right and left wheels must be less
than 30’
2. Caster and kingpin inclination are preset at the factory
and cannot be adjusted.
SELECTION THE CAMBER
Select the camber by the installation direction of the allow
of the connecting bolt of the strut assembly and the knuckle.
D-1
_00’±30’: Install the bolt turning the allow to the direction
of vehicle inside.
D-2
_00’±30’: Install the bolt turning the allow to the direction
of vehicle outside.
BALL JOINT DUST COVER CHECK
1. Check the dust cover for cracks or damage by pushing
it with finger.
2. If the dust cover is cracked or damaged, replace the
lower arm assembly.
NOTE
Cracks or damage of the dust cover may cause damage
of the ball joint.
Page 1032 of 1449
FRONT SUSPENSION -Strut Assembly33A-6
STRUT ASSEMBLY
REMOVAL AND INSTALLATION
Post-installation Operation
Wheel alignment check and adjustment (Refer to
P.33A-4.)
44±5N·m
3
21
167±9N·m
4
5
Removal steps
1. Front wheel speed sensor harness
bracket
2. Brake hose bracket3. Knuckle connection
4. Strut mounting nut
5. Strut assembly
Page 1033 of 1449

FRONT SUSPENSION -Strut Assembly33A-7
DISASSEMBLY AND REASSEMBLY
60±10 N·m
3
2
1
5
6
7
8
9
4
3
Disassembly steps
1. Dust cover
AA""AA2. Self-locking nut
3. Strut insulator assembly
4. Upper spring seat assembly
5. Bump rubber6. Dust cover
7. Coil spring
8. Lower spring pad
AB"9. Strut assembly
DISASSEMBLY SERVICE POINTS
AA"SELF-LOCKING NUT REMOVAL
1. Use the special tools to compress the coil spring.
Caution
(1) Do not tighten the special tool bolt too tight. The
special tool will be broken if the allowable
tightening torque of 74 N·m is exceed.
(2) Install the special tools evenly, and so that the
maximum length will be attained within the
installation range.
(3) Do not use an impact wrench as it will cause the
bolt of the special tool to be seized.
2. Using the special tools, loosen the self-locking nut.
Caution
To prevent the piston rod lock nut inside the strut
from loosening, do not use an impact wrench when
the self-locking nut is loosened.
MB991237
MB991238
MB991681
MB991682