differential SSANGYONG MUSSO 1998 Workshop Repair Manual

GENERAL INFORMATION 0B-9
Chassis and Body
Months
MAINTENANCE
ITEMMAINTENANCE INTERVALKilometers or time in months, whichever comes first
120 105 90 75 60 45 30 15 1
96 84 72 60 48 36 24 12
- x1,000 km
Exhaust pipes & mountings
Brake/Clutch fluid(3)(4)
Parking brake/Brake pads F & R (5)
Brake line & connections (including booster)
Manual transmission oil (3)
Clutch & brake pedal free play
Front & Rear Differential Fluid (3)I
R
I
I
I
I
I-
-
-
I
I
-
II
I
I
I
I
I
II
R
I
I
I
I
II
I
I
I
R
I
RI
I
I
I
I
I
II
R
I
I
R
I
RI
I
I
I
I
I
II
R
I
I
I
I
I
Automatic transmission fluid (MB W4A040) (6)
Automatic transmission fluid (BTRA M74)
Chassis & underbody bolts & nuts tight/secure
Tire condition & inflation pressure
Wheel alignment (7)
Steering wheel & linkage
Power steering fluid & lines* (3)
Drive shaft boots
Seat belts, buckles & anchors
Lubricate locks, hinges & bonnet latchI
I
I
I
II
I
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
I
IR
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
I
IR
R
I
I
I
I
I
I
I
II
I
I
I
I
I
I
I
I
Transfer case fluidRIII
Inspect & ADJUST when abnormal condition is noted
I
I
I
I
I
I
I
I
I
Chart Symbols :
I - Inspect these items and their related parts. If necessary, correct, clean, replenish, adjust or replace.
R - Replace or change.
(3) Refer to “Recommended fluids and lubricants”.
(4) Change the brake / clutch fluid every 15,000 km if the vehicle is mainly driven under severe conditions:
- Driving in hilly or mountainous terrain, or
- Towing a trailer frequently
(5) More frequent maintenance is required if under severe condition : short distance driving, extensive idling, frequent low -
speed operation in stop-and-go traffic or driving in dusty condition.
(6) Change automatic transaxle fluid and filter every 75,000 km if the vehicle is mainly driven under severe conditions.
- In heavy city traffic where the outside temperature regularly reaches 32°C (90°F) or higher, or
- In hilly or mountainous terrain, or
- When doing frequent trailer towing, or
- Uses such as found in taxi, police or delivery service.
(7) If necessary, rotate and balance wheels.

GENERAL INFORMATION 0B-11
Chassis and Body
Months
-
MAINTENANCE
ITEMMAINTENANCE INTERVAL
Kilometers or time in months, whichever comes first
100 90 80 70 60 50 40 30 20 10 1
60 54 48 42 36 30 24 18 12 6 x1,000 km
Exhaust pipes & mountings
Brake/clutch fluid(3) (4)
Parking brake/Brake pads (F & R) (5)
Brake line & connections (including booster)
Manual transmission fluid (3)
Clutch & brake pedal free play
F & R Differential fluid (3)
I
II
I
I
I
I
I
II
I
I
I
I
I
II
R
I
I
I
I
II
I
I
I
I
I
II
I
I
I
R
I
RI
R
I
I
I
I
II
I
I
I
I
I
II
I
I
I
I
I
II
R
I
I
I
I
II
I
I
I
R
I
R
Automatic transmission fluid (BTRA M74) (6)
Chassis & underbody bolts & nuts tight/secure
Tire condition & inflation pressure
Wheel alignment (7)
Steering wheel & linkage
Power steering fluid & lines* (3)
Drive shaft boots
Seat belts, buckles & anchors
Lubricate locks, hinges & bonnet latchI
I
I
I
I
I
I
II
I
I
I
I
I
I
II
I
I
I
I
I
I
I
II
I
I
I
I
I
I
II
I
I
I
I
I
I
II
I
I
I
I
I
I
II
I
I
I
I
I
II
I
I
I
I
I
I
II
I
I
I
I
I
I
I
Transfer case fluid (3)R
IR
I II
I
I
I
I
II
I
I
I
I
I
I
I
I
Inspect & ADJUST when abnormal condition is noted
II
I
Chart Symbols :
I - Inspect these items and their related parts. If necessary, correct, clean, replenish, adjust or replace.
R - Replace or change.
(3) Refer to “Recommended fluids and lubricants”.
(4) Change the brake / clutch fluid more regularly if the vehicle is mainly driven under severe conditions :
- Driving in hilly or mountainous terrain, or
- Towing a trailer frequently
(5) More frequent maintenance is required if under severe condition : short distance driving, extensive idling, frequent low -
speed operation in stop-and-go traffic or driving in dusty condition.
(6) Change automatic transmission fluid every 70,000 km if the vehicle is mainly driven under severe conditions.
- In heavy city traffic where the outside temperature regularly reaches 32°C (90°F) or higher, or
- In hilly or mountainous terrain, or
- When doing frequent trailer towing, or
- Uses such as found in taxi, police or delivery service.
(7) If necessary, rotate and balance wheels.

2D-2 REAR SUSPENSION
DIAGNOSIS
NOISE (DURING STRAIGHT DRIVING)
Check
Lack of Oil
Low Viscosity of Oil
Insufficient Oil
Excessive Backlash of Ring Gear
Worn or Damaged Tooth of Ring and Pinion Gear
Worn or Damaged Drive Pinion Bearing
Worn Spline of Side Bearing and Side Gear
Bent Axle Housing
Bent Differential Case
Worn Pinion Shaft
Incorrect Drive Pinion Preload
Incorrect Contact of Ring Gear and PinionAction
Replenish
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Adjust
Retightening
NOISE (DURING TURNING)
Check
Worn or Damaged Tooth of Pinion or Side Gear
Worn Pinion Shaft
Excessive Backlash of Pinion Gear and Side Gear
Excessive End-play of Rear Axle Shaft
Incorrect Contact of Side Gear and Differential Case
Axle Housing Crack
Bent or Poor Installation of Drive Pinion Oil Seal
Damaged or Torn Drive Pinion Oil Seal
Loosened Bearing Collar
Worn or Damaged Universal Joint
Worn of Damaged Axle Shaft BearingAction
Replace
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Replace
OIL LEAKAGE
Check
Excessive Oil
Faulty Seal of Carrier Contact Surface
Axle Housing Crack
Worn or Damaged Oil SealAction
Adjust
Repair
Replace
Replace

M/T
M/T
A/T (MB)
M/T
A/T (BTRA)
M/T
A/T (BTRA)
M/T
A/T (MB)
M/T
A/T (MB)
A/T (BTRA)
M/T
A/T (MB)
A/T (BTRA)
SECTION 3A
FRONT DRIVE AXLE
TABLE OF CONTENTS
SPECIFICATIONS
GENERAL SPECIFICATIONS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 3A-1
General Specifications . . . . . . . . . . . . . . . . . . 3A-1
Fastener Tightening Specifications . . . . . . . . . 3A-2
Component Locator . . . . . . . . . . . . . . . . . . . 3A-3
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-3
Auto-Locking Hub . . . . . . . . . . . . . . . . . . . . . . 3A-4
Vacuum Circuit . . . . . . . . . . . . . . . . . . . . . . . . 3A-5
Maintenance and Repair . . . . . . . . . . . . . . . 3A-6
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 3A-6
Vacuum Line . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-6
Steering Knuckle and Drive Shaft . . . . . . . . . . 3A-8
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-14
Unit Repair . . . . . . . . . . . . . . . . . . . . . . . . . 3A-16
Axle Housing . . . . . . . . . . . . . . . . . . . . . . . . . 3A-16
Application
Drive Shaft Type
Axle Housing Type
Differential Type
Differential Gear
CV Joint
Build - up
Conventional
Hypoid Gear
4.56
4.56
3.73
4.56
5.38
4.27
4.89
4.89
4.55
4.55
4.55
5.86
3.73
3.73
4.89
1.4 L
SAE 80W/90, API GL - 5
Description
661NA
662NA
661LA
662LA
E20
E23
E32 Reduction Ratio
Oil Capacity
Oil Specification

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
2 4 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
3 1 Bolt......................................................75-90 Nm
3 2 Bolt......................................................48-69 Nm
33 Washer
34 Bearing Cap
35 Thrust Washer
36 Side Gear
37 Differential Shaft
38 Differential Pinion
39 Thrust Washer

FRONT DRIVE AXLE 3A-19
5. Unscrew the bearing cap bolts and remove the bearing caps.
Pull out the differential carrier assembly.
Notice
Place 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 :
lCheck the ring gear and drive pinion for wear and
damage. If damaged, replace it as a set.
lCheck the bearing for sticks, wear, noise and turning
resistance.
lCheck the side gear, pinion, pinion shaft and thrust
washer for wear and damage.
lCheck the differential carrier for crack and wear (bearing
contact 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 Nut240 - 310 Nm
Tightening Torque of the
Ring Gear Bolts75 - 90 Nm
Standard 0 - 0.05 mm
Tightening Torque of the
Bearing Cap Bolts48 - 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 housing
mounting bracket.
Notice
Apply 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

SECTION 3D
REAR DRIVE AXLE
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 3D-1
General Specifications . . . . . . . . . . . . . . . . . . 3D-1
Fastener Tightening Specifications . . . . . . . . . 3D-2
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-3
Noise (During Straight Driving) . . . . . . . . . . . . 3D-3
Oil Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-3
Noise (During Turning) . . . . . . . . . . . . . . . . . . 3D-3
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-3
Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-4Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-4
Component Locator . . . . . . . . . . . . . . . . . . . 3D-5
Maintenance and Repair . . . . . . . . . . . . . . . 3D-6
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 3D-6
Axle Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-6
Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3D-9
Unit Repair . . . . . . . . . . . . . . . . . . . . . . . . . 3D-11
Axle Housing . . . . . . . . . . . . . . . . . . . . . . . . . 3D-11
LSD (Limited Slip Diffrential) . . . . . . . . . . . . . 3D-16
SPECIFICATIONS
GENERAL SPECIFICATIONS
Axle Shaft Type
Axle Housing Type
Differential
Reduction Ratio
Type
Gear
M/T
M/T
A/T (MB)
M/T
A/T (BTRA)
M/T
A/T (BTRA)
Description
Semi - floating
Salibury (Build-up)
Conventional Type
Hypoid Gear
4.55
4.55
3.73
4.55
5.38
4.27
4.89Application
661NA
662NA
661LA
662LA

REAR DRIVE AXLE 3D-3
Checks
Worn or Damaged Tooth of Pinion or Side Gear
Worn Pinion Shaft
Excessive Backlash of Pinion Gear and Side Gear
Excessive End-play of Rear Axle Shaft
Incorrect Contact of Side Gear and Differential Case
Axle Housing Crack
Bent or Poor Installation of Drive Pinion Oil Seal
Damaged or Torn Drive Pinion Oil Seal
Loosened Bearing Collar
Worn or Damaged Universal Joint
Worn or Damaged Axle Shaft BearingChecks
Excessive Oil
Faulty Seal of Carrier Contact Surface
Axle Housing Crack
Worn or Damaged Oil SealChecks
Lack of Oil
Low Viscosity of Oil
Insufficient Oil
Excessive Backlash of Ring Gear
Worn or Damaged Tooth of Ring and Pinion Gear
Worn or Damaged Drive Pinion Bearing
Bent Axle Housing
Bent Differential Case
Worn Pinion Shaft
Incorrect Drive Pinion Preload
Incorrect Contact of Ring Gear and Pinion
DIAGNOSIS
NOISE (DURING STRAIGHT DRIVING)
Action
Replenish
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Adjust
Retightening
OIL LEAKAGE
Action
Adjust
Repair
Replace
Replace
NOISE (DURING TURNING)
Action
Replace
Replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Replace
Replace
HEATING
Checks
Lack of Oil
Insufficient Backlash of Gears
Excessive Preload of BearingAction
Replenish
Adjust
Adjust