Mitsubishi 380. Manual - part 839

STRUT ASSEMBLY

FRONT SUSPENSION

33-10

DISASSEMBLY SERVICE POINTS

.

<<A>> STRUT NUT (SELF-LOCKING NUT) 
REMOVAL

1. Install special tool MB991795 to special tool MB991793 as 

shown in the illustration.

2. Set the strut assembly to the following special tools.

• MB991793: Spring Compressor

• MB991794: Upper Plate

• MB991795: Attachment A

• MB991830: Fixture

NOTE: Set the strut assembly by using the bolt and nut that 
are removed from the vehicle. When installing the bolt and 
nut, lightly tighten them by hand. 

3. Compress the coil spring approximately 5 mm (0.20 inch) 

using the spring compressor.

CAUTION

Do not use an impact wrench to tighten the strut nut, oth-
erwise the strut nut will be damaged. Vibration of the 
impact wrench will cause the valve inside the strut to drop 
out.
4. Use a hexagon wrench and a pipe to secure the strut, and 

then remove the strut nut (self-locking nut) using special tool 
MB991681.

.

AC105115 AE

MB991795

MB991793

AC105116 AE

MB991794

MB991830

MB991795

MB991793

AC305844

AC305845

AB

MB991681

HEXAGON 
WRENCH

PIPE

<3.8L ENGINE MODELS>

STRUT ASSEMBLY

FRONT SUSPENSION

33-11

<<B>> FRONT SUSPENSION STRUT DISPOSAL

WARNING

Wear goggles when drilling to protect your eyes from 
flying metal debris.

The gas must be discharged from the strut before discarding it. 
Place the strut horizontally with its piston rod extended. Then 
drill a hole of approximately 3 mm (0.1 inch) in diameter at the 
location shown in the illustration and discharge the gas.

ASSEMBLY SERVICE POINTS

.

>>A<< SPRING LOWER PAD INSTALLATION

Engage the three lugs of the spring lower pad into the holes on 
the front suspension strut as shown.

.

>>B<< STRUT INSULATOR INSTALLATION

If the upper plate and lower plate of the strut insulator have 
been disassembled, assemble them as shown.

.

>>C<< STRUT NUT (SELF-LOCKING NUT) 
INSTALLATION

1. Ensure that the bearing is seated correctly.

AC210097AB

AC205614AB

SPRING LOWER 
PAD

FRONT SUSPENSION 
STRUT

AC210098AB

ARROW ON THE 
UPPER PLATE

ARROW ON THE 
LOWER PLATE

STRUT ASSEMBLY

FRONT SUSPENSION

33-12

WARNING

When the strut piston rod is positioned to the hole of 
strut insulator with compressing the coil spring, be 
careful not that your hand is jammed by the coil 
spring.

2. Compress the coil spring slowly using the following special 

tools, penetrating the strut piston rod to the hole of strut 
insulator.

• MB991793: Spring Compressor

• MB991794: Upper Plate

• MB991795: Attachment A

• MB991830: Fixture

3. While the coil spring is being compressed by the special 

tools, temporarily tighten the strut nut (self-locking nut).

4. Ensure that the arrows on the strut bracket center and the 

strut insulator are positioned as shown.

CAUTION

Do not use an impact wrench to tighten the strut nut, oth-
erwise the strut nut will be damaged. Vibration of the 
impact wrench will cause the valve inside the strut to drop 
out.
5. For 3.8L engine models, using special tool MB991681, a 

hexagon wrench and a pipe, tighten the strut nut 
(self-locking nut) to 65 

± 5 N⋅m (48 ± 4 ft-lb).

AC105116 AE

MB991794

MB991830

MB991795

MB991793

AC205613

STRUT 
INSULATOR

AC

0˚ ± 2˚

STRUT 
BRACKET

AC305844

AC305845

AB

MB991681

HEXAGON 
WRENCH

PIPE

<3.8L ENGINE MODELS>

LOWER ARM

FRONT SUSPENSION

33-13

INSPECTION

M1332001400207

• Check the strut bearing for wear.

• Check the rubber parts for damage or deterioration.

• Check the coil spring for deformation, deterioration or dam-

age.

• Check the front suspension strut for deformation.

LOWER ARM

REMOVAL AND INSTALLATION

M1332001600364

CAUTION

*

: Indicates parts which should be temporarily tightened, and then fully tightened with the vehicle on 

the ground in an unladen condition.

Required Special Tool:

• MB991897: Ball Joint Remover

Post-installation Operation
• Check the dust cover for cracks or damage by pushing it 

with your finger.

• Front Wheel Alignment Check and Adjustment (Refer to 

P.33-6

).

12DB013A

AC305736

1

2

165 ± 15 N·m*

122 ± 11 ft-lb*

110 ± 10 N·m

SPECIFIED GREASE :

     MULTIPURPOSE GREASE SAE 

     J310, NLGI NO.2 OR EQUIVALENT

165 ± 15 N·m

122 ± 11 ft-lb

N

2

REMOVAL STEPS

<<A>>

1.

LOWER ARM AND KNUCKLE 
CONNECTION

2.

LOWER ARM ASSEMBLY