All Chevrolet steering linkage assemblies were made at Chevrolet-Buffalo; on Corvettes, Buffalo painted the completed assembly with sticky black chassis blackout paint at least through 1967, and stopped painting them sometime in 1968 or 1969. We changed the complete steering linkage at Willow Run on the first 1,000 Norwood '67 Camaros (due to a heat-treat issue at Buffalo), but I don't recall if those linkages were painted or not.