Mitsubishi Evolution X. Manual - part 903

CONTROL LINK AND LOWER ARM

TSB Revision

REAR SUSPENSION

34-13

REMOVAL SERVICE POINTS

.

<<A>> SELF-LOCKING NUT REMOVAL

CAUTION

• Loosen the self-locking nut from the ball joint, but do 

not remove here. Use the special tool.

•

AC208247AN

Cord

Bolt

MB991897
or
MB992011

Nut

Ball joint

To prevent the special tool from dropping off, suspend 
it with a cord.

1. Install special tool MB991897 or MB992011 as shown in the 

figure.

AC104739AB

Parallel

Knob

Bolt

Correct

Wrong

2. Turn the bolt and knob to make the special tool jaws parallel, 

then hand-tighten the bolt. After tightening, check that the 
jaws are still parallel.
NOTE: To adjust the special tool jaws to be parallel, set the 
orientation of the knob as shown in the figure.

3. Tighten the bolt with a wrench to disconnect the ball joint 

connection.

.

<<B>> CONTROL LINK ASSEMBLY/LOWER ARM 
ASSEMBLY REMOVAL

AC506821AB

Mating mark

Make mating marks on the adjusting bolts, and remove the 
control link assembly and lower arm assembly.

CONTROL LINK AND LOWER ARM

TSB Revision

REAR SUSPENSION

34-14

INSTALLATION SERVICE POINT

.

>>A<< SELF-LOCKING NUT INSTALLATION

AC705237AB

Transmission
jack

Wooden
block

Self-locking
nut

Control link
assembly

AC705238AB

Self-locking
nut

Trailing arm
assembly

Transmission
jack

Wooden
block

1. Using a transmission jack and wooden block as shown in 

the figure, raise the control link assembly or trailing arm 
assembly.

2. Install the self-locking nut and tighten it to the specified 

torque.

Tightening torque: 81 

± 6 N⋅ m (60 ± 4 ft-lb)

CONTROL LINK BALL JOINT ROTATION 
STARTING TORQUE CHECK

M1341021100013

Required Special Tool:

• MB990326: Preload socket

.

AC705395AB

MB990326

1. After moving the control link ball joint stud back and forth for 

several times, install the nut to the stud. Then, measure the 
control link ball joint rotation starting torque using the special 
tool MB990326.

Standard value: 0.5 

− 2.5 N⋅ m (4.5 − 22.1 in-lb)

2. When the measured value exceeds the standard range, 

replace the control link assembly.

3. When the measured value is less than the standard value, 

check that the control link ball joint has no looseness or 
gritty feeling. If there is no looseness or gritty feeling, it is 
judged as usable.

CONTROL LINK AND LOWER ARM

TSB Revision

REAR SUSPENSION

34-15

CONTROL LINK SLIDE BUSHING ROTATION 
STARTING TORQUE CHECK

M1341021200010

Required Special Tool:

• MB990326: Preload socket

.

AC705396AB

MB990326

1. Insert the bolt to the control link slide bushing, and install the 

nuts with the washer from the opposite side. Rotate the 
inner cylinder (including washer) for several turns, and 
measure the rotation starting torque of the control link slide 
bushing using the special tool MB990326.

Standard value: 2.0 (17.7 in-lb) or less

2. When the measured value exceeds the standard range, 

replace the control link assembly.

3. Even if the measured value is within the standard value, 

check that the control link slide bushing has no looseness or 
gritty feeling. If there is no looseness or gritty feeling, it is 
judged as usable.

CONTROL LINK BALL JOINT DUST COVER 
INSPECTION

M1341021300017

Refer to 

P.34-10

.

LOWER ARM PILLOW BALL BUSHING ROTATION 
STARTING TORQUE CHECK

M1341021400014

Required Special Tool:

• MB990326: Preload socket

.

AC705385AB

MB990326

1. Insert the bolt to the lower arm pillow ball bushing, and 

install the nut with the washer from the opposite side. Rotate 
the inner cylinder (including washer) for several turns, and 
measure the rotation starting torque of the lower arm pillow 
ball bushing using the special tool MB990326.

Standard value:

Rear suspension crossmember side: 3.0 N

⋅ m (26.5 

in-lb)

Knuckle side: 9.8 N

⋅ m (86.7 in-lb)

2. When the measured value exceeds the standard range, 

replace the lower arm assembly.

3. Even if the measured value is within the standard value, 

check that the lower arm pillow ball bushing has no 
looseness or gritty feeling. If there is no looseness or gritty 
feeling, it is judged as usable.

CONTROL LINK AND LOWER ARM

TSB Revision

REAR SUSPENSION

34-16

CONTROL LINK BALL JOINT DUST COVER 
REPLACEMENT

M1341021500011

Required Special Tool:

• MB990800: Ball Joint Remover and Installer

Only when the control link ball joint dust cover is damaged acci-
dentally during service work, replace the dust cover as follows:
1. Remove the control link ball joint dust cover.
2. Fill the specified grease in the control link ball joint dust 

cover and lubricate the lip.

Specified grease: Multipurpose grease SAE J310, 
NLGI No.2 or equivalent

Amount to use: Inside of control link ball joint dust 

cover: Approx. 7g (0.247 ounce)

Amount to use: lip part: as required

AC705397AB

MB990800

Dust cover

Snap ring

3. Using the special tool MB990800, punch the control link ball 

joint dust cover until it contacts the snap ring.

4. Press the control link ball joint dust cover with your finger to 

check that there are no cracks or damage in the dust cover.