For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningRemoval Procedure
Warning: Refer to Approved Equipment for Collision Repair Warning in the
Preface section.
Warning: Refer to Glass and Sheet Metal Handling Warning in the Preface section.
Disable the SIR System. Refer to SIR Disabling
and Enabling.
Disconnect the negative battery cable. Refer to ...
Stabilizer Shaft Link Replacement
Preliminary Procedure
Raise and support the vehicle. Refer to Lifting and Jacking
the Vehicle.
Remove the front tire and wheel assemblies. Refer to Tire and Wheel
Removal and Installation.
Stabilizer Shaft Link Nut (Qty: 2)
Caution: Refer to Fastener Caution in the Pr ...
Installation Procedure
Align the rocker inner panel.
Clean and prepare the attaching surfaces for spot welding.
Apply structural adhesive to all attaching surfaces.
Position the rocker inner panel on the
vehicle.
Verify the fit of the quarter outer panel
Clamp the rocker inner panel into posi ...