Mitsubishi Lancer Evolution IX. Manual - part 567

33-1

GROUP 33

FRONT 

SUSPENSION

CONTENTS

GENERAL DESCRIPTION. . . . . . . . .

33-2

SERVICE SPECIFICATIONS. . . . . . .

33-3

SPECIAL TOOLS. . . . . . . . . . . . . . . .

33-3

ON-VEHICLE SERVICE. . . . . . . . . . .

33-4

FRONT WHEEL ALIGNMENT CHECK AND 
ADJUSTMENT  . . . . . . . . . . . . . . . . . . . . . . 

33-4

LOWER ARM BALL JOINT AXIAL PLAY 

 

CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

33-5

BALL JOINT DUST COVER CHECK . . . . . 

33-5

STRUT ASSEMBLY. . . . . . . . . . . . . .

33-6

REMOVAL AND INSTALLATION . . . . . . . . 

33-6

INSPECTION  . . . . . . . . . . . . . . . . . . . . . . . 

33-6

DISASSEMBLY AND ASSEMBLY  . . . . . . . 

33-7

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

33-9

LOWER ARM  . . . . . . . . . . . . . . . . . . .

33-10

REMOVAL AND INSTALLATION  . . . . . . . . 

33-10

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

33-11

BALL JOINT DUST COVER REPLACEMENT

33-12

LOWER ARM PILLOW BALL BUSHING 
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . 

33-12

STABILIZER BAR* . . . . . . . . . . . . . . .

33-14

REMOVAL AND INSTALLATION  . . . . . . . . 

33-14

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 

33-16

CROSSMEMBER BAR . . . . . . . . . . . .

33-17

REMOVAL AND INSTALLATION  . . . . . . . . 

33-17

WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES

WARNING

•

Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to 

personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and 

passenger (from rendering the SRS inoperative).

•

Service or maintenance of any SRS component or SRS-related component must be performed only at an 

authorized MITSUBISHI dealer.

•

MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental 

Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any 

SRS-related component.

NOTE

The SRS includes the following components: SRS-ECU, SRS warning lamp, air bag module, clock spring, and interconnecting                

wiring. Other SRS-related components (that may have to be removed/installed in connection with SRS service or maintenance)                

are indicated in the table of contents by an asterisk (*).

GENERAL DESCRIPTION

FRONT SUSPENSION

33-2

GENERAL DESCRIPTION

M1332000100311

A MacPherson strut independent suspension-type 
suspension is used for the front suspension. Aggres-
sive use of special components that include Mitsubi-
shi Motor’s own inverted struts and forged aluminium 
parts reduces weight to create a suspension that 
gives superior performance made with competition 
use in mind.

CONSTRUCTION DIAGRAM

AC211383AC

Stabilizer bar

Lower arm assembly
(forged aluminium)

Front axle No.1 
crossmember

Strut (inverted strut)

Strut insulator

Coil spring

Stabilizer link
(pillow ball bushing)

Front axle 
crossmember bar

Lower arm bushing
(pillow ball bushing)

SPECIFICATIONS

COIL SPRING

Item

Specification

Wire diameter mm

14

Average diameter mm

155

Free length mm

286

SERVICE SPECIFICATIONS

FRONT SUSPENSION

33-3

SERVICE SPECIFICATIONS

M1332000300735

Item

Specification

Toe-in mm

0 

± 2

Steering angle

Inner wheel

31

°45' ± 1°30'

Outer wheel (reference)

27

°15'

Camber (selectable from 2 options)

−1°00' ± 0°30'* or −2°00’ ± 0°30’ (Left/right 
deviation within 30')

Caster

3

°55' ± 0°30' (Left/right deviation within 30')

Kingpin inclination

13

°45' ± 1°30'

Lower arm ball joint starting torque N

⋅m

0.5 

− 3.4

Lower arm pillow ball bushing starting torque N

⋅m

0.5 

− 3.0

Stabilizer link ball joint turning torque N

⋅m 

1.7 

− 3.2

NOTE: *: Default factory setting

SPECIAL TOOLS

M1332000600532

Tool

Number

Name

Use

MB991237

A

B

A: MB991237
B: MB991238

A: Spring compressor 

body

B: Arm set

Coil spring compression

MB991680

A

B

MB991680

A: MB991681
B: MB991682

Wrench set

A: Wrench
B: Socket

Strut assembly 
disassembly and 
reassembly

MB991006

MB991006

Preload socket

Lower arm ball joint 
starting torque 
measurement

MB990326

MB990326

Preload socket

Lower arm ball bushing 
starting torque 
measurement

MB990800

MB990800

Ball joint dust cover 
installer

Lower arm ball joint dust 
cover press-in

MB990883

ON-VEHICLE SERVICE

FRONT SUSPENSION

33-4

ON-VEHICLE SERVICE

FRONT WHEEL ALIGNMENT CHECK AND 
ADJUSTMENT

M1331000900875

Measure wheel alignment with alignment equipment 
on a level surface. The front suspension, steering 
system, wheels, and tires should be serviced to nor-
mal condition before measuring wheel alignment.

TOE-IN

Standard value: 0 

± 2 mm

AC006074 AD

Lock nut

Clip

1. Adjust the toe-in by undoing the clip and lock nut, 

and turning the left and right tie rod turnbuckles by 
the same amount (in opposite directions).
NOTE: The toe will move out as the left turnbuckle 
is turned toward the front of the vehicle and the 
right turnbuckle is turned toward the rear of the 
vehicle.

2. Install the clip and tighten the lock nut to the 

specified torque.

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 wheel

31

°45' ± 1°30'

Outer wheel (for 
reference)

27

°15'

MB990651

Bar

Lower arm pillow ball 
bushing removal and 
press-fitting

MB991816

Bushing remover & 
installer base

MB991576

MB991576

Base

AC106827

MB991897 or MB992011

Ball joint remover

Knuckle and tie rod end 
ball joint disconnection
NOTE: Steering linkage 
puller (MB990635 or 
MB991113) is also 
available to disconnect 
knuckle and tie rod end 
ball joint.

Tool

Number

Name

Use