Mitsubishi 380. Manual - part 469

AK301246AB

Install with this side down

TRANSMISSION

AUTOMATIC TRANSMISSION OVERHAUL

23B-36

CAUTION

Be sure to install the thrust bearing in the correct 
direction as shown.
57.Check the installation direction of thrust bearing 

#2, and install it on the underdrive clutch hub.

AK300238

58.Hold the input shaft, and install the underdrive 

clutch.

59.Adjustment of input shaft end play and select the 

thrust washer #1. (Refer to adjustment of 
transmission - thrust washer selection for 
adjustment of input shaft end play 

P.23B-41

)

AK300237

60.Install thrust washer #1 that was selected in step 

59 on the underdrive clutch retainer.

AK301247AD

MD998412

CAUTION

Never use a gasket that has been tightened.

61.Use the special tool Guide (MD998412) to install 

a new oil pump gasket and the oil pump.

62.Tighten the oil pump mounting bolts to the 

specified torque of 29 

± 2 N⋅m.

AK300517

63.Measure the end play of the input shaft. Make 

sure that the end play of the input shaft is within 
the standard value range with the thrust washer 
#1 in place.

Standard value: 0.70 

− 1.45 mm

AK300234

64.Install the oil filter.

AK202308

MB990938

MB990936

AB

TRANSMISSION

AUTOMATIC TRANSMISSION OVERHAUL

23B-37

65.Use the special tools to drive the differential 

bearing outer race into the transmission case.

• Installer adapter (MB990936)

•

AK301866

Handle (MB990938)

66.Install the differential.

67.Adjustment of differential case preload and select 

the spacer. (Refer to adjustment of transmission - 
spacer selection for adjustment of differential case 
preload 

P.23B-41

)

AK202226

MB991445

AC

68.Use special tools Bushing remover and installer 

base (MB991445) to press the differential bearing 
outer race into the torque converter housing.

AK301252AC

69.Apply an approx. 2 mm diameter bead of from-in-

place gasket (FIGP) to the torque converter 
housing in the area shown.

Specified sealant: Mitsubishi genuine seal-
ant Part No. MD974421 or equivalent

AK300232 AB

O-rings

70.Install the O-rings (two pieces).

AK202103

71.Install the converter housing and tighten the 

mounting bolts to the specified torque of 48 

± 6 

N

⋅m.

72.Insert the O-rings (two pieces) into the grooves of 

the manual control lever shaft.

73.Install the manual control lever shaft and parking 

pawl rod.

AK300520 AC

Hole "A"

TRANSMISSION

AUTOMATIC TRANSMISSION OVERHAUL

23B-38

74.Align hole "A" with the groove in the manual 

control lever shaft. Insert the manual control lever 
shaft roller into hole "A."

75.Insert the new seal rings in the grooves of the 

accumulator pistons.

NOTE: The piston and seal ring are common 
parts.

AK202102

76.Install the piston and spring of the reduction brake 

accumulator, then install the accumulator cover.

AK301313AC

1

2

3

4

AK300229AD

4

3

2

1

77.Identify the accumulator spring and insert it and 

the accumulator piston into each hole of the 
transmission case.

NOTE: Accumulator springs are identified as 
shown in the illustration.

No. Name

Identification 
"BLUEING"

1

For low-reverse 
brake

None

2

For underdrive 
clutch

Half

3

For second brake Whole surface

4

For overdrive 
clutch

None

AK300228

Strainer

AC

Second brake

retainer oil seal

78.Install the strainer and second brake retainer oil 

seal.

AK300227AC

Snap ring

Connector

79.Insert a new O-ring to the groove of the solenoid 

valve harness connector.

80.Insert the solenoid valve harness connector into 

the hole from the inside of the transmission case 
so it is oriented as shown in the illustration. Then 
secure the snap ring to the connector groove.

AK403612AD

Steel ball

TRANSMISSION

AUTOMATIC TRANSMISSION OVERHAUL

23B-39

81.Install the steel balls into each of the two holes in 

the top face of the valve body (outside valve 
body).

82.Install the valve body and gasket to the 

transmission case.

 

Make sure that the manual valve's pin is in the 
groove in the detent plate of the manual control 
lever.

AK403611

83.Install the valve body mounting bolts (twenty 

seven pieces), and tighten to the specified torque 
of 11 

± 1 N⋅m.

AK403610 AE

1

2

3

4

5

6

84.Attach the solenoid valve harness to the valve 

body by connecting all the connectors.

85.Install the fluid temperature sensor to the 

specified torque of 11 

± 1 N⋅m.

No. Solenoid 

valve

Cable 
colour

Connector 
housing colour

1

Underdrive 
solenoid valve

White, red, 
red

Black

2

Overdrive 
solenoid valve

Orange, 
red

Black

3

Low-reverse 
solenoid valve

Brown, 
yellow

Milky white

4

Second 
solenoid valve

Blue, red, 
red

Milky white

5

Damper 
clutch control 
solenoid valve

Blue, 
yellow, 
yellow

Black

6

Reduction 
solenoid valve

Green, 
yellow, 
yellow

Black

AK403609AD

Manual control

shaft detent

86.Install the manual control shaft detent and tighten 

the bolt to the specified torque of 6.0 

± 1.0 N⋅m.

AK301264AE

2.4 – 2.6 mm

87.Apply an approx. 2 mm diameter bead of from-in-

place gasket (FIGP) to the valve body cover in the 
area shown.

Specified sealant: Mitsubishi genuine seal-
ant Part No. MD974421 or equivalent