differential SSANGYONG MUSSO 2003 Service Manual

GENERAL INFORMATION 0B-9
Chassis and Body
Months
MAINTENANCE ITEM MAINTENANCE INTERVAL
Kilometers 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
IIIII- --II
-
I IIIIII I
I
R I II I I IIII
R I
R IIIII I II
R
II
R I
R IIIIII II
R I IIII
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 latchIIII I I IIII I III I I IIII I IIII
R
III I IIII IIII I IIIIIIIII I III I
R R
III I IIII IIII I IIII
Transfer case fluidRII
I
Inspect & ADJUST when abnormal condition is noted
I
I II I IIII
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 I I IIIIIIIIIIIII I
R
IIIII IIIIIII IIII
R I
R I
R
IIIII IIIIIIIIIIIIII I
R
IIIII IIII
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 II I IIII III I IIII IIII I III I
I II I IIII III I IIIIIII I IIII III II II III I IIIIIII I IIII
Transfer case fluid (3)
RI R
I
I
I
I I I II IIII I IIII
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 SUSPENSIONDIAGNOSIS
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 GearWorn or Damaged Drive Pinion BearingWorn Spline of Side Bearing and Side Gear Bent Axle Housing Bent Differential CaseWorn Pinion ShaftIncorrect Drive Pinion PreloadIncorrect Contact of Ring Gear and Pinion Action
Replenish ReplaceReplace Adjust
ReplaceReplace Replace ReplaceReplaceReplace Adjust
Retightening
NOISE (DURING TURNING)
Check
Worn or Damaged Tooth of Pinion or Side Gear Worn Pinion ShaftExcessive Backlash of Pinion Gear and Side Gear Excessive End-play of Rear Axle Shaft Incorrect Contact of Side Gear and Differential CaseAxle Housing CrackBent or Poor Installation of Drive Pinion Oil Seal
Damaged or Torn Drive Pinion Oil Seal Loosened Bearing Collar Worn or Damaged Universal JointWorn of Damaged Axle Shaft Bearing Action
ReplaceReplaceReplace Adjust
ReplaceReplaceReplaceReplace Replace ReplaceReplace
OIL LEAKAGE
Check
Excessive Oil Faulty Seal of Carrier Contact Surface Axle Housing Crack Worn or Damaged Oil Seal Action
Adjust
Repair
ReplaceReplace

M/T M/TA/T (MB)M/TA/T (BTRA) M/T A/T (BTRA)M/TA/T (MB)M/T A/T (MB) A/T (BTRA)M/TA/T (MB)A/T (BTRA)
SECTION 3A
FRONT DRIVE AXLE
TABLE OF CONTENTSSPECIFICATIONS
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-5Maintenance 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 TypeDifferential Gear
CV Joint
Build - up
Conventional
Hypoid Gear 4.56 4.56 3.734.565.384.27 4.89 4.894.554.554.55 5.86 3.733.734.89
1.4 L
SAE 80W/90, API GL - 5
Description
661NA 662NA 661LA662LA 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
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

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

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-4 Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 TypeDifferential Reduction Ratio
Type Gear M/T M/TA/T (MB)M/TA/T (BTRA) M/T A/T (BTRA)
Description
Semi - floating
Salibury (Build-up)
Conventional Type Hypoid Gear
4.55 4.55 3.73 4.555.384.274.89Application
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 ShaftIncorrect Contact of Side Gear and Differential CaseAxle Housing CrackBent or Poor Installation of Drive Pinion Oil Seal
Damaged or Torn Drive Pinion Oil Seal Loosened Bearing CollarWorn or Damaged Universal JointWorn or Damaged Axle Shaft Bearing Checks
Excessive OilFaulty Seal of Carrier Contact Surface Axle Housing Crack Worn or Damaged Oil Seal Checks
Lack of OilLow Viscosity of OilInsufficient Oil Excessive Backlash of Ring Gear
Worn or Damaged Tooth of Ring and Pinion GearWorn or Damaged Drive Pinion BearingBent Axle HousingBent Differential Case Worn Pinion Shaft Incorrect Drive Pinion PreloadIncorrect Contact of Ring Gear and Pinion DIAGNOSIS
NOISE (DURING STRAIGHT DRIVING)
Action
Replenish
Replace Replace
Adjust
ReplaceReplaceReplaceReplace Replace Adjust
Retightening
OIL LEAKAGE
Action Adjust
Repair
Replace Replace
NOISE (DURING TURNING)
Action
Replace Replace Replace Adjust
Replace ReplaceReplace Replace ReplaceReplaceReplace
HEATING
Checks
Lack of Oil Insufficient Backlash of GearsExcessive Preload of Bearing Action
Replenish AdjustAdjust