Installation Procedure

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Rear Suspension Lower Control Arm(1) - Install
Rear Suspension Lower Control Arm Adjuster Bolt(1) - Install
NOTE:
Ensure the proper rear suspension lower control arm adjuster bolt and rear suspension lower control arm adjust cam installation and orientation.

Install the rear suspension lower control arm adjuster bolt so the rear suspension lower control arm adjust cam does not overlap the raised structure on the cradle (1), and the rear suspension lower control arm adjust cam scribe marks face 9 and 3 o'clock (2).
Rear Suspension Lower Control Arm Adjust Cam(2) - Install
Rear Suspension Lower Control Arm Inner Nut(1) - Install and hand tighten
NOTE:
Ensure the proper rear suspension lower control arm inner nut and rear suspension lower control arm adjust cam installation and orientation.

Install the rear suspension lower control arm inner nut so the rear suspension lower control arm adjust cam does not overlap the raised structure on the cradle (1), and the cam scribe marks face 9 and 3 o'clock (2).
Rear Coil Spring Insulator(3) - Install
Rear Coil Spring Lower Insulator(2) - Install
Rear Coil Spring(1) - Install
Raise the rear suspension lower control arm (1) back into position.
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

CAUTION:

Refer to Fastener Caution .

Rear Suspension Lower Control Arm Outer Nut(1) - Install and tighten
1. First Pass: 150 N.m (111 lb ft)
2. Final Pass: (90-105 degrees)
Rear Suspension Lower Control Arm Inner Nut(1) - Tighten 160 N.m (118 lb ft)
Rear Shock Absorber Bolt(2) - Install NEW
Rear Shock Absorber Nut(1) - Install - Shock Absorber Replacement (GNC) Shock Absorber Replacement (GNQ)
{ If equipped }Wiring Harness@Rear Suspension Lower Control Arm - Install
Remove the support from the rear suspension lower control arm.
Install the rear tire and wheel assembly. Tire and Wheel Removal and Installation
Remove the support and lower the vehicle.
Verify the rear camber specifications and adjust as necessary. Rear Camber Adjustment (GNQ)Rear Camber Adjustment (GNC)