Discontinued part replacement
It replaced a discontinued part all right.

SuperPro OEM+ Front Radius Arm Set TRC1011
SuperPro's TRC1011 offers not only a significant performance upgrade via the pre-fitted SuperPro bushings we also include an uprated ball joint to replace the fast-wearing OEM version.
Key Features:
Installation Guide: Download Now
| Make | Model | Trim | Engine | Years |
|---|---|---|---|---|
| Chevrolet | SS | Base | 6.2L V8 | 2014–2017 |