Steve83
Bronco Guru
IDK why the seller thinks they're old stock - they're still in production. But all the Ford sites say they're not for Lightnings.
https://www.tascaparts.com/oem-parts/ford-radius-arm-f1tz3a360b
https://www.tascaparts.com/oem-parts/ford-radius-arm-f1tz3a360b