2003 SSANGYONG MUSSO axle

FRONT DRIVE AXLE 3A-15
Removal & Installation Procedure
1. Remove the propeller shaft from the front axle input shaft.Notice Before removal, place the alignment marks. Installation Notice
2. Remove the breather hose.
3. Remove the axle housing mounting nuts (1) from the cross member. Installation Notice
Tightening Torque 70 - 80 Nm
4. Remove the cross member mounting nuts (2) from the frame and remove the cross member. Installation Notice
Tightening Torque 95 - 142 Nm
5. Support the axle housing on a suitable jack, Remove the axle housing mounting bracket nuts. Installation Notice
Tightening Torque 62 - 93 Nm
Tightening Torque 95 - 142 Nm
6. Lowering the jack carefully, remove the axle housing assembly.
7. Installation should follow the removal precedure in the reverse order.

3A-16 FRONT DRIVE AXLE
UNIT REPAIR
AXLE HOUSING Preceding Work : Removal of the axle housing

FRONT DRIVE AXLE 3A-17
1 Front Axle Housing Mounting Bracket
2 Inner Shaft (Left)
3 Bolt...................................................... 55-65 Nm
4 Oil Seal .................................................. Replace
Apply Grease to the Sealing Rib
5 Snap Ring
6 Bearing
7 Snap Ring
8 Oil Drain Plug ....................................... 28-41 Nm
9 Front Axle Housing
10 Breather Nipple 11 Inner Shaft (Right)
12 Pinion Lock Nut ................................ 240-310 Nm
13 Washer
14 Companion Flange
15 Oil Seal .................................................. Replace
Apply Grease to the Sealing Rib
16 Bearing
1 7 Shim
18 Bearing Baffle
1 9 Shim20 Bearing
21 Oil Slinger
22 Drive Pinion
23 Oil Filler Plug ....................................... 28-41 Nm
24 Bolt ...................................................... 39-46 Nm
25 Axle Housing Cover ..............Apply Liquid Gasket
to the Contact Surface
26 Ring Gear
27 Bearing
2 8 Shim
29 Shaft Lock Pin
30 Differential Case
31 Bolt ...................................................... 75-90 Nm
32 Bolt ...................................................... 48-69 Nm
33 Washer
34 Bearing Cap
35 Thrust Washer
36 Side Gear
37 Differential Shaft
38 Differential Pinion
39 Thrust Washer

3A-18 FRONT DRIVE AXLE
Disassembly Procedure
1. Remove the drain plug and drain the oil. Reinstall the drainplug. Installation Notice
Tightening Torque 28 - 41 Nm
2. Unscrew the axle housing and housing mounting bracket bolts and remove the bracket and inner shaft assembly.
3. Remove the bearing fixing snap ring of the inner shaft and pull out the bearing. Separate the inner shaft and the mounting bracket.
4. Remove the axle housing cover. Notice Clean the cover and housing contact surfaces.

FRONT DRIVE AXLE 3A-19
5. Unscrew the bearing cap bolts and remove the bearing caps.Pull out the differential carrier assembly. NoticePlace alignment marks on the bearing cap not to change the caps before removal. When pulling out the differential
carrier assembly, be careful not to damage the axle housing.
6. Disassemble the parts of the differential carrier assembly.
7. Remove the drive pinion lock nut. Disassemble the parts of the drive pinion.
Assembly Procedure
1. Clean the all parts and check the followings : Check the ring gear and drive pinion for wear and damage. If damaged, replace it as a set.
Check the bearing for sticks, wear, noise and turning resistance.
Check the side gear, pinion, pinion shaft and thrustwasher for wear and damage.
Check the differential carrier for crack and wear (bearingcontact surface). Check the gear case for crack.

3A-20 FRONT DRIVE AXLE
2. Assemble the parts of the drive pinion.
3. Assemble the parts of the differential carrier.
4. Measure backlash of the side gear and pinion.
5. Install the differential carrier assembly into the axle housing.Notice Be careful not to change the caps. Be sure to keep the original position of the caps.
Tightening Torque of the Lock Nut 240 - 310 Nm
Tightening Torque of the
Ring Gear Bolts 75 - 90 Nm
Standard 0 -
0.05 mm
Tightening Torque of the
Bearing Cap Bolts 48 - 69 Nm

FRONT DRIVE AXLE 3A-21
6. Measure backlash of the drive pinion and ring gear.
7. Install the axle housing cover.
8. Assemble the parts of the front axle shaft and housingmounting bracket. NoticeApply grease to the oil seal rib.
9. Align the axle shaft and differential carrier spline and insert the axle shaft. Assemble the axle housing mounting bracket to the axle housing.
Specified Value 0.13 - 0.20 mm
Tightening Torque 39 - 46 Nm
Tightening Torque 55 - 65 Nm

3A-22 FRONT DRIVE AXLE
Inspection of Ring Gear Tooth Contact Pattern Normal Contact Apply gear-marking compound (prussian blue / red lead) on the ring gear teeth. Rotate the ring gear and check the tooth contact pattern. Abnormal Contact
Tooth Contact pattern Possible CauseRemedy
1. Heel Contact
2. Toe Contact
3. Face Contact
4. Flank ContactInsufficient backlash (little)

Tooth can be damaged or broken under heavy load
Excessive backlash (much)
Drive pinion shaft is apart from the ring gear
Noise can be occurred
Insufficient backlash (much)
Gear contacts on the low flank
Gear can be damaged orworn
Noise can be occurred Adjust backlash(Decrease backlash)

Select proper shim(s) to move the drive pinion toward the ring gear (toward toe)
Adjust backlash(Increase backlash)
Select proper shim(s) to move the drive pinion against the ring gear (toward heel)
Adjust backlash(Increase pinion shim)
Move the drive pinion toward the ring gear (toward center of ring gear)
Adjust backlash(Decrease pinion shim)
Move the ring gear toward the drive pinion (toward ring gear center line)
Excessive backlash (little)

Noise can be occurred