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‌SUSPENSION

Rear Suspension - Volt

SPECIFICATIONS

FASTENER SPECIFICATIONS

Single Use Threaded Fastener/Component Tightening Specifications

Reusable Threaded Fastener Tightening Specifications

ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS

REPAIR INSTRUCTIONS

REAR WHEEL BEARING AND HUB REPLACEMENT

Removal Procedure

1. Remove the rear tire and wheel assemblies. Tire and Wheel Removal and Installation

2. Remove Rear Brake Rotor Replacement

3. Remove Rear Wheel Speed Sensor Replacement

Fig. 1: Rear Shock Absorber, Bolt And Hydraulic Lift Courtesy of GENERAL MOTORS COMPANY

4. Support the rear axle with a tall jack stand (3) near the shock absorber.

5. Remove Rear Shock Absorber Bolt (2)

6. Reposition the shock absorber (1) to gain access to the rear wheel bearing and hub bolts.

Fig. 2: Rear Wheel Bearing And Hub Bolts Courtesy of GENERAL MOTORS COMPANY

7. Remove Bolt (1)

Fig. 3: Rear Brake Caliper Mount Plate, Rear Brake Shield, Rear Wheel Bearing and Hub Assembly

Courtesy of GENERAL MOTORS COMPANY

8. Remove Rear Wheel Bearing and Hub Assembly (1)

9. Remove Rear Brake Shield (2)

10. Remove Rear Brake Caliper Mount Plate (3)

Installation Procedure

1. Prepare the wheel bearing and hub threaded holes and bolts for assembly.

1. Thoroughly clean the residue from the bolt threads with denatured alcohol or equivalent and allow to dry.

2. Thoroughly clean the residue from the threaded holes with denatured alcohol or equivalent and allow to dry.

3. Apply thread locking adhesive to the bolts. Adhesives, Fluids, Lubricants, and Sealers

Fig. 4: Rear Brake Caliper Mount Plate, Rear Brake Shield, Rear Wheel Bearing and Hub Assembly

Courtesy of GENERAL MOTORS COMPANY

2. Install Rear Brake Caliper Mount Plate (3)

3. Install Rear Brake Shield (2)

4. Install Rear Wheel Bearing and Hub Assembly (1)

Fig. 5: Rear Wheel Bearing And Hub Bolts Courtesy of GENERAL MOTORS COMPANY

CAUTION: Refer to Fastener Caution .

5. Install Bolt (1) and tighten

1. First Pass:50 N.m (37 lb ft)

2. Final Pass:30 - 45 degrees

6. Prepare the rear shock absorber threaded hole and bolt for assembly.

1. Thoroughly clean the residue from the bolt threads with denatured alcohol or equivalent and allow to dry.

2. Thoroughly clean the residue from the threaded holes with denatured alcohol or equivalent and allow to dry.

3. Apply thread locking adhesive to the bolts. Adhesives, Fluids, Lubricants, and Sealers

Fig. 6: Rear Shock Absorber, Bolt And Hydraulic Lift Courtesy of GENERAL MOTORS COMPANY

7. Install Rear Shock Absorber Bolt (2), but do NOT tighten

8. Remove the tall jack stand (3) supporting the rear axle near the shock absorber.

9. Install Rear Wheel Speed Sensor Replacement

10. Install Rear Brake Rotor Replacement

11. Install Tire and Wheel Removal and Installation

12. Lower the vehicle.

Fig. 7: Rear Shock Absorber Bolt

Courtesy of GENERAL MOTORS COMPANY

NOTE: Tighten the rear shock absorber bolt with the vehicle at curb height.

13. Tighten Rear Shock Absorber Bolt (1) Shock Absorber Replacement

REAR AXLE BRACKET REPLACEMENT

Special Tools

EN-45059 Angle Meter

Equivalent regional tools:Special Tools

Removal Procedure

1. Raise and support the vehicle. Lifting and Jacking the Vehicle

2. Remove the rear tire and wheel assemblies. Tire and Wheel Removal and Installation

3. Remove Exhaust Muffler Exhaust Muffler Replacement

4. Remove Underbody Rear Air Deflector Underbody Rear Air Deflector Replacement

Fig. 8: Brake Caliper Assembly And Lectrical Connector Courtesy of GENERAL MOTORS COMPANY

5. Disconnect Electrical Connector (1) @Rear Parking Brake Actuator (2)

Fig. 9: Wiring Harness Rear Wheel Speed Sensor Courtesy of GENERAL MOTORS COMPANY

6. Remove Wiring Harness (1) @Rear Wheel Speed Sensor (2)

7. Remove Wiring Harness@Rear Axle

Fig. 10: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

NOTE: Use two hydraulic jacks, one for each side.

8. Lift the rear axle with a hydraulic jack (2).

9. Remove Rear Shock Absorber Bolt (1)

Fig. 11: Rear Spring

Courtesy of GENERAL MOTORS COMPANY

NOTE: Using a grease pencil, mark the orientation of the rear coil springs for proper installation.

10. Remove Rear Spring (1)

11. Remove Rear Coil Spring Lower Insulator Rear Coil Spring Lower Insulator Replacement

Fig. 12: Rear Tire Front Air Deflector Courtesy of GENERAL MOTORS COMPANY

12. Reposition Rear Tire Front Air Deflector (1)Rear Tire Front Air Deflector Replacement

Fig. 13: Right Side Axle Bracket Bolts Courtesy of GENERAL MOTORS COMPANY

NOTE: A second technician is required.

13. Remove Rear Axle Bracket Bolt (1) @Body and DISCARD

CAUTION: Do not suspend the rear axle by the brake hoses. Damage to the brake hoses may result.

14. Carefully lower the rear axle as necessary without applying stress to the rear brake hoses.

Fig. 14: Rear Axle Bracket Bolts

Courtesy of GENERAL MOTORS COMPANY

15. Remove Rear Axle Bracket Bolt (2) and DISCARD

16. Remove Rear Axle Bracket (1)

Installation Procedure

Fig. 15: Rear Axle Bracket Bolts

Courtesy of GENERAL MOTORS COMPANY

NOTE: The Rear Axle Bracket (1) is equipped with a pin to arrange the rear axle on the vehicle. The pin has to be insert into the vehicle.

1. Install Rear Axle Bracket (1)

NOTE: Install, but do NOT tighten

2. Install New Rear Axle Bracket Bolt (2)

NOTE: A second technician is required.

3. Position the rear axle to the vehicle.

Fig. 16: Right Side Axle Bracket Bolts Courtesy of GENERAL MOTORS COMPANY

WARNING: Torque-to-Yield Fastener Warning CAUTION: Fastener Caution

4. Install Rear Axle Bracket Bolt (1) @Body and tighten the NEW bolt.

1. First Pass: 100 N.m (74 lb ft)

2. Final Pass:30 - 45 degrees

Fig. 17: Measuring Vertical Distance

Courtesy of GENERAL MOTORS COMPANY

5. Raise the rear axle to the proper trim height specification by measuring the vertical distance (A) between the upper and lower insulator seat.

Adjust (A) to: 152 mm (5.98 in)

Fig. 18: Rear Axle Bracket Bolts

Courtesy of GENERAL MOTORS COMPANY

WARNING: Torque-to-Yield Fastener Warning

6. Tighten the bolts.(2)

1. First Pass: 100 N.m (74 lb ft)

2. Final Pass:30 - 45 degrees

Fig. 19: Rear Tire Front Air Deflector Courtesy of GENERAL MOTORS COMPANY

7. Install Rear Tire Front Air Deflector (1)Rear Tire Front Air Deflector Replacement

8. Install Rear Coil Spring Lower Insulator Rear Coil Spring Lower Insulator Replacement

Fig. 20: Rear Spring

Courtesy of GENERAL MOTORS COMPANY

NOTE: For proper rear spring installation, align the reference marks made during removal.

9. Install Rear Coil Spring (1)

Fig. 21: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

10. Support the rear axle with a hydraulic jack (2) near the shock absorber.

NOTE: Install, but do NOT tighten

NOTE: Service may offer bolts without microencapsulated thread locking adhesive. If this is the case, apply thread locking adhesive to the bolt.

11. Loosely install Rear Shock Absorber Bolt (1)

12. Install Exhaust Muffler Exhaust Muffler Replacement

13. Install Underbody Rear Air Deflector Underbody Rear Air Deflector Replacement

Fig. 22: Brake Caliper Assembly And Lectrical Connector Courtesy of GENERAL MOTORS COMPANY

14. Connect Electrical Connector (1) @Rear Parking Brake Actuator (2)

Fig. 23: Wiring Harness Rear Wheel Speed Sensor Courtesy of GENERAL MOTORS COMPANY

15. Connect Electrical Connector (1) @Rear Wheel Speed Sensor (2)

16. Install Wiring Harness@Rear Axle

17. Install the rear tire and wheel assemblies. Tire and Wheel Removal and Installation

18. Remove the support and lower the vehicle.

Fig. 24: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

NOTE: Tighten the bolts with vehicle standing on the ground.

19. Rear Shock Absorber Bolt (1) - Tighten Shock Absorber Replacement

STRUT AND SHOCK ABSORBER INSPECTION

NOTE: The shock absorber assembly DOES NOT have to be removed from the vehicle

to perform the following inspection procedure.

NOTE: A light film of oil on the top portion of the lower shock absorber tube is normal.

DO NOT replace the shock absorber for this condition.

Fig. 25: Identifying Shock Absorber Conditions Courtesy of GENERAL MOTORS COMPANY

Condition 1

Oil or fluid residue only on the bottom or top of the shock absorber and not originating from the shaft seal, is not a shock absorber related problem. DO NOT replace the shock absorber, look for other external leaks.

Condition 2

Light film/residue on approximately 1/3 (a) or less of the lower shock tube (A) and originating from the shaft seal, is a NORMAL condition. DO NOT replace the shock absorber.

Condition 3

Oil drip or trail down the lower shock tube and originating from the shaft seal, is an ABNORMAL condition. Replace the shock absorber. Refer to Shock Absorber Replacement.

Condition 4

An extreme wet film of oil covering more than 1/3 (b) of the lower shock tube and originating from the shaft seal (B), is an ABNORMAL condition. Replace the shock absorber. Refer to Shock Absorber Replacement.

Inspection

1. Verify the customer's concern is present. If the concern is present, continue to the next step. If the concern is not present, then the vehicle is operating normally.

NOTE: The shock absorber assembly DOES NOT have to be removed from the vehicle to perform the following inspection procedure.

2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

3. Visually inspect each of the shock absorbers for external fluid leaks. Refer to the following conditions 1, 2, 3 and 4 for visual inspection.

If conditions 1 or 2 are found, continue to step 4.

If conditions 3 or 4 are found, replace shock absorber. Refer to Shock Absorber Replacement .

4. Use your hands in order to lift up and push down on each corner of the vehicle 3 times. Remove your hands from the vehicle. If the corner motion exceeds 2 cycles, replace the shock absorber. If the shock absorber does not exceed 2 cycles, NO repair is necessary.

REAR SHOCK ABSORBER BUMPER REPLACEMENT

Fig. 26: Rear Shock Absorber Bumper Courtesy of GENERAL MOTORS COMPANY

REAR SHOCK ABSORBER MOUNT REPLACEMENT

Special Tools

CH-51095 Wrench

Equivalent regional tools:Special Tools

Removal Procedure

1. Remove Tire and Wheel Removal and Installation

2. Remove Shock Absorber Replacement

Fig. 27: Rear Shock Absorber And Wrench Courtesy of GENERAL MOTORS COMPANY

3. Install CH-51095 wrench (1) @Rear Shock Absorber (2)

Fig. 28: Rear Shock Absorber Nut And Upper Mount Courtesy of GENERAL MOTORS COMPANY

4. Remove Rear Shock Absorber Nut (1) and DISCARD

5. Remove Rear Shock Absorber Upper Mount (2)

Installation Procedure

Fig. 29: Rear Shock Absorber Nut And Upper Mount Courtesy of GENERAL MOTORS COMPANY

1. Install Rear Shock Absorber Upper Mount (2)

2. Install Rear Shock Absorber Nut (1) but do NOT tighten

Fig. 30: Rear Shock Absorber And Wrench Courtesy of GENERAL MOTORS COMPANY

3. Install CH-51095 wrench (1) @Rear Shock Absorber (2)

CAUTION: Refer to Fastener Caution .

4. Rear Shock Absorber Nut - Tighten 25 N.m (18 lb ft)

5. Install Shock Absorber Replacement

6. Install Tire and Wheel Removal and Installation

SHOCK ABSORBER REPLACEMENT

Removal Procedure

1. Remove Tire and Wheel Removal and Installation

Fig. 31: Rear Shock Absorber Bolt

Courtesy of GENERAL MOTORS COMPANY

2. Support the rear axle with a tall jack stand near the shock absorber.

3. Remove Rear Shock Absorber Bolt (1)

Fig. 32: Rear Shock Absorber Bolts

Courtesy of GENERAL MOTORS COMPANY

4. Remove Rear Shock Absorber Bolt (1)

Installation Procedure

Fig. 33: Rear Shock Absorber Bolts

Courtesy of GENERAL MOTORS COMPANY

1. Install Rear Shock Absorber Bolt (1)

CAUTION: Refer to Fastener Caution .

2. Rear Shock Absorber Bolt (1) - Tighten 22 N.m (16 lb ft)

Fig. 34: Rear Shock Absorber Bolt

Courtesy of GENERAL MOTORS COMPANY

3. Install Rear Shock Absorber Bolt (1), but do NOT tighten

4. Install Tire and Wheel Removal and Installation

5. Lower the vehicle.

NOTE: Tighten the bolt with vehicle standing on the ground.

6. Rear Shock Absorber Bolt (1), Tighten 100 N.m (74 lb ft)

SHOCK ABSORBER DISPOSAL

Fig. 35: Drilling Hole In Shock Absorber At Centerpunched Locations Courtesy of GENERAL MOTORS COMPANY

WARNING: Gas charged shock absorbers contain high pressure gas. Do not remove the snap ring from inside the top of the tube. If the snap ring is removed, the contents of the shock absorber will come out with extreme force which may result in personal injury.

WARNING: To prevent personal injury, wear safety glasses when centerpunching and drilling the shock absorber. Use care not to puncture the shock absorber tube with the centerpunch.

1. Make an indentation 10 mm (0.4 in) from the bottom (4) of the tube (3) using a centerpunch.

2. Clamp the shock absorber in a vise horizontally with the shock absorber rod (1) completely extended.

3. Drill a hole in the shock absorber at the centerpunch (4) using a 5 mm (3/16 in) drill bit. Gas or a gas/oil mixture will exhaust when the drill bit penetrates the shock absorber. Use shop towels in order to contain the escaping oil.

4. Make an indentation in the middle (2) of the tube (3) with a centerpunch.

5. Drill a second hole in the shock absorber at the centerpunch (2) using a 5 mm (3/16 in) drill bit. Oil will exhaust when the drill bit penetrates the shock absorber. Use shop towels in order to contain the escaping oil.

6. Remove the shock absorber from the vise. Hold the shock absorber over a drain pan horizontally with the holes down. Move the rod (1) in and out of the tube (3) to completely drain the oil from the shock absorber.

REAR COIL SPRING REPLACEMENT

Special Tools

EN-45059 Angle Meter

Equivalent regional tools:Special Tools

Removal Procedure

1. Remove the rear tire and wheel assemblies. Tire and Wheel Removal and Installation

2. Remove Exhaust Muffler Exhaust Muffler Replacement

3. Remove Underbody Rear Air Deflector Underbody Rear Air Deflector Replacement

Fig. 36: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

NOTE: Use two hydraulic jacks, one for each side.

4. Lift the rear axle with a hydraulic jack (2).

5. Remove Rear Shock Absorber Bolt (1)

Fig. 37: Rear Spring

Courtesy of GENERAL MOTORS COMPANY

NOTE: Note the orientation of the rear springs for proper installation.

6. Remove Rear Spring (1)

7. Remove Rear Coil Spring Lower Insulator Rear Coil Spring Lower Insulator Replacement

8. Remove Rear Coil Spring Insulator Rear Coil Spring Insulator Replacement

Installation Procedure

1. Install Rear Coil Spring Insulator Rear Coil Spring Insulator Replacement

2. Install Rear Coil Spring Lower Insulator Rear Coil Spring Lower Insulator Replacement

Fig. 38: Rear Spring

Courtesy of GENERAL MOTORS COMPANY

NOTE: For proper rear spring orientation ensure that the end of the rear spring, with the label closest to it, is installed in the upright position.

3. Install Rear Spring (1)

Fig. 39: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

4. Support the rear axle with a hydraulic jack (2) near the shock absorber.

NOTE: Install, but do NOT tighten

5. Loosely install Rear Shock Absorber Bolt (2)

6. Install Underbody Rear Air Deflector Underbody Rear Air Deflector Replacement

7. Install Exhaust Muffler Exhaust Muffler Replacement

8. Install Tire and Wheel Removal and Installation

9. Lower the vehicle.

Fig. 40: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

NOTE: Tighten the bolts with vehicle standing on the ground.

10. Rear Shock Absorber Bolt (1) - Tighten Shock Absorber Replacement

REAR COIL SPRING INSULATOR REPLACEMENT

Fig. 41: Rear Coil Spring Insulator

Courtesy of GENERAL MOTORS COMPANY

REAR COIL SPRING LOWER INSULATOR REPLACEMENT

Fig. 42: Rear Coil Spring Lower Insulator Courtesy of GENERAL MOTORS COMPANY

REAR AXLE REPLACEMENT

Special Tools

EN-45059 Angle Meter

Equivalent regional tools:Special Tools

Removal Procedure

1. Raise and support the vehicle. Lifting and Jacking the Vehicle

2. Remove the rear tire and wheel assemblies. Tire and Wheel Removal and Installation

3. Remove Exhaust Muffler Exhaust Muffler Replacement

4. Remove Underbody Rear Air Deflector Underbody Rear Air Deflector Replacement

Fig. 43: Brake Caliper Assembly And Lectrical Connector Courtesy of GENERAL MOTORS COMPANY

5. Disconnect Electrical Connector (1) @Rear Parking Brake Actuator (2)

Fig. 44: Wiring Harness Rear Wheel Speed Sensor Courtesy of GENERAL MOTORS COMPANY

6. Disconnect Electrical Connector (1) @Rear Wheel Speed Sensor (2)

7. Remove Wiring Harness@Rear Axle

Fig. 45: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

NOTE: Use two hydraulic jacks, one for each side.

8. Lift the rear axle with a hydraulic jack (2).

9. Remove Rear Shock Absorber Bolt (1)

Fig. 46: Locating Bolts

Courtesy of GENERAL MOTORS COMPANY

10. Remove Rear Wheel Bearing Bolt (1) @Rear Axle

Fig. 47: Rear Brake Assemblies, Rear Axle And Rear Wheel Bearing Hubs Courtesy of GENERAL MOTORS COMPANY

CAUTION: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

11. Remove the 2 rear wheel bearing hubs (3) and the 2 rear brake assemblies (1) from the rear axle (2) and support the assemblies with heavy mechanics wire suitably attached to the body.

Fig. 48: Rear Spring

Courtesy of GENERAL MOTORS COMPANY

NOTE: Using a grease pencil, mark the orientation of the rear coil springs for proper installation.

12. Remove Rear Coil Spring (1)

13. Remove Rear Coil Spring Lower Insulator Rear Coil Spring Lower Insulator Replacement

Fig. 49: Rear Tire Front Air Deflector Courtesy of GENERAL MOTORS COMPANY

14. Reposition Rear Tire Front Air Deflector (1)Rear Tire Front Air Deflector Replacement

Fig. 50: Right Side Axle Bracket Bolts Courtesy of GENERAL MOTORS COMPANY

NOTE: A second technician is required.

15. Remove Rear Axle Bracket Bolt (1) @Body and DISCARD

16. Lower the rear axle.

Fig. 51: Rear Axle Bracket Bolts

Courtesy of GENERAL MOTORS COMPANY

17. Remove Rear Axle Bracket Bolt (2) @Rear Axle and DISCARD

18. Remove Rear Axle Bracket (1)

19. Transfer components as necessary.

Installation Procedure

Fig. 52: Rear Axle Bracket Bolts

Courtesy of GENERAL MOTORS COMPANY

NOTE: The Rear Axle Bracket (1) is equipped with a pin to arrange the rear axle on the vehicle. The pin has to be insert into the vehicle.

1. Install Rear Axle Bracket (1)

NOTE: Install, but do NOT tighten

2. Install New Rear Axle Bracket Bolt (2) @Rear Axle - NEW bolts.

NOTE: A second technician is required.

3. Position the rear axle to the vehicle.

Fig. 53: Right Side Axle Bracket Bolts Courtesy of GENERAL MOTORS COMPANY

WARNING: Torque-to-Yield Fastener Warning CAUTION: Fastener Caution

4. Install Rear Axle Bracket Bolt (1) @Body and tighten the NEW bolt.

1. First Pass: 100 N.m (74 lb ft)

2. Final Pass:30 - 45 degrees

Fig. 54: Measuring Vertical Distance

Courtesy of GENERAL MOTORS COMPANY

5. Raise the rear axle to the proper trim height specification by measuring the vertical distance (A) between the upper and lower insulator seat.

Adjust (A) to: 152 mm (5.98 in)

Fig. 55: Rear Axle Bracket Bolts

Courtesy of GENERAL MOTORS COMPANY

WARNING: Torque-to-Yield Fastener Warning

6. Rear Axle Bracket Bolt (2) @Rear Axle - Tighten

1. First Pass: 100 N.m (74 lb ft)

2. Final Pass:30 - 45 degrees

Fig. 56: Rear Tire Front Air Deflector Courtesy of GENERAL MOTORS COMPANY

7. Install Rear Tire Front Air Deflector (1)Rear Tire Front Air Deflector Replacement

Fig. 57: Rear Brake Assemblies, Rear Axle And Rear Wheel Bearing Hubs Courtesy of GENERAL MOTORS COMPANY

8. Remove the heavy mechanics wire support and install the rear wheel bearing hub (3) and the rear brake assembly (1) to the rear axle (2).

Fig. 58: Locating Bolts

Courtesy of GENERAL MOTORS COMPANY

NOTE: Service may offer bolts without microencapsulated thread locking adhesive. If this is the case, apply thread locking adhesive to the bolt.

9. Install Rear Wheel Bearing Bolt @Rear Axle and tighten (1)Rear Wheel Bearing and Hub Replacement

10. Install Rear Coil Spring Lower Insulator Rear Coil Spring Lower Insulator Replacement

Fig. 59: Rear Spring

Courtesy of GENERAL MOTORS COMPANY

NOTE: For proper rear spring installation, align the reference marks made during removal.

11. Install Rear Coil Spring (1)

Fig. 60: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

12. Support the rear axle with a hydraulic jack (2) near the shock absorber.

NOTE: Install, but do NOT tighten

NOTE: Service may offer bolts without microencapsulated thread locking adhesive. If this is the case, apply thread locking adhesive to the bolt.

13. Loosely Install Rear Shock Absorber Bolt (1)

14. Install Exhaust Muffler Exhaust Muffler Replacement

15. Install Underbody Rear Air Deflector Underbody Rear Air Deflector Replacement

Fig. 61: Brake Caliper Assembly And Lectrical Connector Courtesy of GENERAL MOTORS COMPANY

16. Electrical Connector (1) @Rear Parking Brake Actuator (2)

Fig. 62: Wiring Harness Rear Wheel Speed Sensor Courtesy of GENERAL MOTORS COMPANY

17. Connect Electrical Connector (1) @Rear Wheel Speed Sensor (2)

18. Install Wiring Harness@Rear Axle

19. Install the rear tire and wheel assemblies. Tire and Wheel Removal and Installation

20. Remove the support and lower the vehicle.

Fig. 63: Rear Shock Absorber Bolt And Hydraulic Jack Courtesy of GENERAL MOTORS COMPANY

NOTE: Tighten the bolts with vehicle standing on the ground.

21. Rear Shock Absorber Bolt (1) - Tighten Shock Absorber Replacement

WHEEL STUD REPLACEMENT

Fig. 64: Wheel Stud

Courtesy of GENERAL MOTORS COMPANY

DESCRIPTION AND OPERATION

REAR SUSPENSION DESCRIPTION AND OPERATION

This vehicle has a semi-independent twist-beam rear suspension system consisting of the following components:

An axle with integral trailing arms A "V" shaped twisting cross beam Two coil springs

Two shock absorbers

Axle Assembly

The axle assembly attaches to the underbody through a rubber bushing and bracket located at the front of each integral trailing arm. The brackets are bolted to the underbody side rails. The axle structure itself maintains the geometrical relationship of the wheels relative to the centerline of the body.

SPECIAL TOOLS AND EQUIPMENT

SPECIAL TOOLS

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