Mitsubishi Galant. Manual — part 478
26-1
GROUP 26
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .
FRONT AXLE DIAGNOSIS . . . . . . . .
SYMPTOM CHART. . . . . . . . . . . . . . . . . . .
SYMPTOM PROCEDURES . . . . . . . . . . . .
SPECIAL TOOLS. . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE. . . . . . . . . . .
HUB END PLAY CHECK . . . . . . . . . . . . . .
HUB BOLT REPLACEMENT . . . . . . . . . . .
FRONT AXLE HUB ASSEMBLY . . . .
REMOVAL AND INSTALLATION . . . . . . . .
INSPECTION . . . . . . . . . . . . . . . . . . . . . . .
WHEEL BEARING PLAY CHECK . . . . . . .
KNUCKLE . . . . . . . . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION . . . . . . . .
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .
DRIVE SHAFT ASSEMBLY . . . . . . . .
REMOVAL AND INSTALLATION . . . . . . . .
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .
DISASSEMBLY AND REASSEMBLY . . . . .
BJ BOOT REPLACEMENT . . . . . . . . . . . . .
SPECIFICATIONS . . . . . . . . . . . . . . .
FASTENER TIGHTENING SPECIFICATIONS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL SPECIFICATIONS . . . . . . . . . .
SERVICE SPECIFICATIONS . . . . . . . . . . .
GENERAL DESCRIPTION
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FRONT AXLE
26-2
.
G EN ER A L DESC RIPTIO N
M1261000100080
FRONT AXLE
The front axle consists of a knuckle, front hub, unit
bearing and drive shaft. The unit bearing is press-
fitted to the front hub and bolted to the knuckle. Also,
the unit bearing utilizes a double row angular contact
ball bearing. The drive shaft has a tripod joint (TJ)
on the transaxle side and a Birfield joint (BJ) on the
wheel side. A center bearing and an inner shaft have
been adopted in 3.0L engine.
CONSTRUCTION DIAGRAM
FR O N T A XLE D IA G N O SIS
SYMPTOM CHART
M1261005700065
AC001145
KNUCKLE
FRONT HUB
UNIT
BEARING
BJ
DYNAMIC
DAMPER
DRIVESHAFT
TJ
INNER SHAFT
CENTER BEARING
TJ
<3.0L ENGINE-RH>
AB
<2.4L ENGINE, 3.0L ENGINE-LH>
SYMPTOMS
INSPECTION
PROCEDURE
REFERENCE PAGE
Driveshaft,
inner shaft
Noise during wheel rotation
1
Noise due to excessive play of wheel in turning
direction
2
FRONT AXLE DIAGNOSIS
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FRONT AXLE
26-3
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1:Noise during Wheel Rotation
DIAGNOSIS
STEP 1. Check the driveshaft and inner shaft for
bending.
Q: Is the driveshaft and inner shaft bent?
YES :
Replace the part. Then go to Step 4.
NO :
Go to Step 2.
STEP 2. Check the inner shaft bearing for wear.
Q: Is the inner shaft bearing worn?
YES :
Replace the bearings. Then go to Step 4.
NO :
Go to Step 3.
STEP 3. Check the driveshaft assembly for wear,
damage or bending.
Q: Is the driveshaft assembly worn, damaged or bent?
YES :
Replace the driveshaft assembly. Then go
to Step 4.
NO :
There is no action to be taken.
STEP 4. Check symptoms.
Q: Is the abnormal noise eliminated?
YES :
Repeat to Step 1.
NO :
This diagnosis is complete.
INSPECTION PROCEDURE 2: Noise Due to Excessive Play of Wheel in Turning Direction
DIAGNOSIS
STEP 1. Check for play in the inner shaft and side
gear serration, the driveshaft and side gear, or
the driveshaft and drive flange.
Q: Is the play found?
YES :
Adjust or replace the part. Then go to Step
NO :
This diagnosis is complete.
STEP 2. Check symptoms.
Q: Is the abnormal noise eliminated?
YES :
Repeat to Step 1.
NO :
This diagnosis is complete.
SPECIAL TOOLS
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FRONT AXLE
26-4
SPECIA L TO O LS
M1261000600074
TOOL
TOOL NUMBER
AND NAME
SUPERSESSION
APPLICATION
MB990767
End yoke holder
MB990767-01
Hub fixing
MB991618
Hub bolt remover
General service
tool
Driving out of hub bolt
MB990635 or
MB991113
Steering linkage
puller
MB991113-01,
MB990635-01 or
General service
tool
Knuckle and tie rod end ball joint
disconnection
MB990998
Front hub
remover and
installer
MB990998-01 or
General service
tool
•
Removal of or pressing-in the hub
•
Provisional holding of the wheel
bearing
MB990326
Preload wrench
General service
tool
Wheel bearing breakaway torque
measurement
MB990241 Axle
shaft puller
A: MB990244
Puller shaft
B: MB990242
Puller bar
MB990241-01 or
General service
tool
Drive shaft removal
MB991354MB99024
1-01 or
General service
tool
Drive shaft removal
MB990767
MB991618
MB990635
MB990998
MB990326
MB990241AB
A
B
MB991354
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