Ball Joint Stud for 1210-101/1210-105

The Ball Joint Stud for 1210-101/1210-105 by QA1 is a precision suspension component engineered for chassis builders, performance shops, and fabricators who demand OEM-quality replacement parts for high-performance or custom applications. Ball joint studs are the critical pivot points that connect control arms to steering knuckles, handling both steering and suspension articulation under dynamic loads. This QA1 stud serves as a direct replacement for specific suspension geometries, ensuring proper alignment geometry and controlled suspension movement in street, autocross, and track environments.

Manufactured from hardened steel with a black oxide finish, this ball joint stud features a 1.500 inch per foot taper, 3.542 inch overall length, and a 1/2-20 inch threaded connection for secure press-fit assembly into the knuckle housing. The black oxide coating provides corrosion resistance and a professional appearance, while the precision taper ensures repeatable fitment without excessive play or wear in the ball socket. The 1/2-20 thread specification is standard for this suspension geometry class, allowing straightforward integration into most control arm designs and steering linkage architectures used in street rod, race car, and modern performance vehicle builds.

Technicians and chassis fabricators benefit most from this QA1 stud when rebuilding front-end suspension systems, restoring worn or damaged ball joints, or constructing custom control arms for vehicle modifications. Compatibility is specific to control arm designs engineered for 1210-101 or 1210-105 mounting configurations; confirm your control arm part number before purchase to avoid fitment issues. Installation requires proper press tooling and alignment verification post-assembly to maintain suspension geometry and tire wear patterns. This is a genuine OEM-equivalent component, not an economy alternative, making it the correct choice for serious fabrication work where suspension geometry precision directly impacts handling, safety, and component longevity.