Buick Regal: Rear Spring Replacement (FWD)

Removal Procedure

1. Remove the rear tire and wheel assembly.

2.

Rear Stabilizer Shaft Link Nut(1) - Remove.

3. Rear Stabilizer Shaft Link Bolt(2) - Remove.

4.

Rear Shock Absorber Nut(1) - Remove.

5. Rear Shock Absorber Bolt(2) - Remove.

DISCARD the bolt.

6. Support the lower control arm.

7.

Rear Suspension Lower Control Arm Nut(1) - Remove.

8. Rear Suspension Lower Control Arm Bolt(2) - Remove.

DISCARD the bolt.

9.

Lower the rear suspension lower control arm (1) to provide clearance for the rear coil spring.

10.

Rear Coil Spring(1) - Remove.

11. Rear Coil Spring Lower Insulator(2) - Remove.

12. Rear Coil Spring Insulator(3) - Remove.

Installation Procedure

1.

Rear Coil Spring Lower Insulator(2) - Install.

2. Rear Coil Spring Insulator(3) - Install.

3. Rear Coil Spring(1) - Install.

4.

Raise the rear suspension lower control arm (1) back into position.

CAUTION: Refer to Fastener Caution.

CAUTION: This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component.

Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

5.

Rear Suspension Lower Control Arm Bolt(2) - Install.

Install a NEW bolt.

6. Rear Suspension Lower Control Arm Nut(1) - Install.

Tighten

1. First Pass: 160 N.m (118 lb ft)
2. Final Pass: (90 - 105 degrees)

7.

Rear Shock Absorber Bolt(2) - Install.

Install a NEW bolt.

8. Rear Shock Absorber Nut(1) - Install.

Tighten

1. First Pass: 160 N.m (118 lb ft)
2. Final Pass: (90 - 105 degrees)

9.

Rear Stabilizer Shaft Link Bolt(2) - Install.

10. Rear Stabilizer Shaft Link Nut(1) - Install.

Tighten 58 N.m (43 lb ft).

11. Remove the support from the rear suspension lower control arm.

12. Install the rear tire and wheel assembly.

REAR SPRING REPLACEMENT (AWD)

Removal Procedure

1. Raise and support the vehicle.

2. Remove the rear tire and wheel assembly.

3. { If equipped }Wiring Harness@Rear Suspension Lower Control Arm - Separate.

4. Support the rear suspension lower control arm.

5.

Rear Shock Absorber Nut(1) - Remove.

6. Rear Shock Absorber Bolt(2) - Remove and DISCARD.

7.

Rear Suspension Lower Control Arm Outer Nut(1) - Remove.

8. Rear Suspension Lower Control Arm Outer Bolt(2) - Remove and DISCARD.

9.

Rear Suspension Lower Control Arm Inner Nut(1) - Loosen.

10.

Using a suitable flat bladed tool (1), separate the rear suspension lower control arm (2) from the rear suspension knuckle (3) as shown.

11.

Lower the rear suspension lower control arm (1) to provide clearance for the rear coil spring.

12.

Rear Coil Spring(1) - Remove.

13. Rear Coil Spring Lower Insulator(2) - Remove.

14. Rear Coil Spring Insulator(3) - Remove.

Installation Procedure

1.

Rear Coil Spring Insulator(3) - Install.

2. Rear Coil Spring Lower Insulator(2) - Install.

3. Rear Coil Spring(1) - Install.

4.

Raise the rear suspension lower control arm (1) back into position.

5.

CAUTION: This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component.

Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

Rear Suspension Lower Control Arm Outer Bolt(2) - Install NEW.

6. Rear Suspension Lower Control Arm Outer Nut(1) - Install.

7.

8. Rear Suspension Lower Control Arm Inner Nut(1) - Tighten.

9.

Rear Shock Absorber Bolt(2) - Install NEW.

10. Rear Shock Absorber Nut(1) - Install.

11. { If equipped }Wiring Harness@Rear Suspension Lower Control Arm - Install.

12. Remove the support from the rear suspension lower control arm.

13. Install the rear tire and wheel assembly.

14. Remove the support and lower the vehicle.

15. Verify the rear camber specifications and adjust as necessary.

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