SSANGYONG MUSSO 2003 Service Manual

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

3D-2 REAR DRIVE AXLEFASTENER TIGHTENING SPECIFICATIONS
Application
Inner Bracket Mounting Nut Propeller Shaft to Rear Axle Input ShaftLower Arm Mounting Nut Lower Shock Absorber to Axle Housing Upper Arm Mounting NutStabilizer Bar Mounting BoltLateral Rod Mounting NutDrive Pinion Lock Nut Oil Drain Plug Ring Gear Mounting BoltOil Filler Plug
N 

 m
50 - 65 70 - 80
150 - 180 50 - 65
150 - 180 30 - 45
150 - 180240 - 310 28 - 4275 - 9028 - 42
4.55 4.554.55 4.27 5.863.733.734.89
1.9 L
SEA 80W/90, API GL - 5
M/TA/T (MB) M/T A/T (MB)A/T (BTRA)M/TA/T (MB) A/T (BTRA)
Oil Capacity Oil Specification
Application Description
GENERAL SPECIFICATIONS(CONT'D)
E20 E23 E32
Reduction Ratio

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

3D-4 REAR DRIVE AXLEVIBRATION
Checks
Faulty Connection of Sliding Joint Bent Propeller ShaftSymmetry of Universal Joint Snap Ring
Loosened Yoke Bolts Action
Adjust
Replace Adjust
Tighten
NOISE
Checks
Worn or Damaged Universal Joint Bearing Fallen Off Universal Joint Snap Ring
Loosened Yoke ConnectionWorn Sliding Joint SplineInsufficient Grease Action
Replace
Adjust or Replace Tighten
Replace
Apply as Necessary

REAR DRIVE AXLE 3D-5
1 Spring Seat
2 Coil Spring
3 Lateral Rod
4 Shock Absorber5 Upper Arm
6 Lower Arm
7 Connecting Link
8 Stabilizer Bar
COMPONENT LOCATOR

3D-6 REAR DRIVE AXLEMAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
AXLE SHAFT
1 Brake Disc
2 Dust Plug
3 Rear Axle Shaft
4 Nut ....................................................... 50-65 Nm
5 Washer
6 Parking Brake Cable
7 Parking Brake Lining and Back Plate Assembly
8 Caliper Assembly
9 Gasket
10 Bolt .................................................... 85-100 Nm
11 Rear Axle Housing

REAR DRIVE AXLE 3D-7
Removal & Installation Procedure
1. Remove the tire.Installation Notice
2. Release the parking brake. Steel Wheel
Aluminum Wheel
Tightening Torque
3. Remove the bolts and the brake caliper.
Installation Notice Be careful not to damage the brake hose.
Tightening Torque 85 - 100 Nm
4. Remove the brake disc. Notice
To remove the disc, install the bolts (M8 x 1.25) into the service hole and uniformly tighten the bolts.
5. Disconnect the parking brake cable.
80 - 120 Nm
110 - 130 Nm

3D-8 REAR DRIVE AXLE
Tightening Torque 50 - 65 Nm
6. Remove the plug from the axle shaft flange and remove theinner shaft mounting nuts. Installation Notice
7. Remove the axle shaft, parking brake lining and back plate assembly.
8. Installation should follow the removal precedure in the reverse order.

REAR DRIVE AXLE 3D-9
AXLE Removal & Installation Procedure
1. Lift up the vehicle and support the frame safely.
2. Remove the axle shaft.
Tightening Torque 150 - 180 Nm
3. Remove the propeller shaft from the rear axle input shaft.
Installation Notice Notice Place alignment marks before removal.
Tightening Torque 81 - 89 Nm
4. Disconnect the parking brake cable and brake hose.
5. Remove the lower arm mounting nuts and remove the lower arm from the axle housing. Installation Notice

3D-10 REAR DRIVE AXLE
6. Separate the lower shock absorber from the axle housing.Installation Notice
7. Remove the upper arm mounting nuts and remove the upper arm form the axle housing. Installation Notice
Tightening Torque 50 - 65 Nm
8. Remove the stabilizer bar. Installation Notice
Tightening Torque 150 - 180 Nm
9. Remove the lateral rod mounting nuts and remove the lateral rod from the axle housing. Installation Notice
Tightening Torque 30 - 45 Nm
10. Lowering the axle housing slowly, remove the coil springs and spring seats.
11. Installation should follow the removal precedure in the reverse order.
Tightening Torque 150 - 180 Nm