Ball Joint Stud for 1210-106

The QA1 Ball Joint Stud for 1210-106 (MPN 9029-224) is a precision replacement component engineered for suspension systems requiring factory-spec stud geometry and durability. This is the critical link between your control arms and steering knuckles—the component that handles vertical suspension travel, cornering loads, and steering inputs throughout the vehicle's operational life. Whether you're restoring a classic build, repairing worn suspension on a daily driver, or maintaining a performance platform, a quality ball joint stud is non-negotiable for safe handling and component longevity.

This stud features a 1.500 inch per foot taper, a 4.143 inch overall length, and a 5/8-18 inch thread specification, delivering exact fitment for applications built to OEM tolerances. The black oxide finish provides corrosion resistance in harsh under-hood and road salt environments, while the steel construction withstands cyclic stress and impact loads without creep or plastic deformation. The standard-length design maintains proper geometric angles and bump-steer characteristics, ensuring predictable suspension kinematics and steering response across the vehicle's intended suspension travel range.

Technicians and builders replacing worn or damaged studs will find this component essential for restoring suspension integrity and eliminating play that contributes to tire wear, wandering, or loose handling feel. Installation requires proper pressing equipment to seat the stud in the knuckle bore and careful torque sequencing to specification—this is not a field-adjustable part. Verify your application's specific taper angle and thread pitch against manufacturer documentation before ordering, as ball joint geometry varies significantly across platforms and model years.