Upper Ball Joint - Screw-In

The QA1 Upper Ball Joint - Screw-In (Part Number 1210-105) is a precision suspension component engineered for vehicles requiring reliable steering geometry and suspension articulation. This take-apart, greasable design delivers low-friction performance with a 1.500-inch-per-foot taper and 3.542-inch stud length, making it suitable for both on-road and tactical vehicle applications where suspension tuning and durability are critical.

Built with a 1/2-20 inch thread and supplied with hardware, this screw-in ball joint allows for straightforward installation and adjustment. The greasable construction enables field maintenance—an essential feature for operators running extended patrols or remote operations where access to service facilities may be limited. The take-apart design means worn components can be serviced without full assembly replacement, reducing downtime and operational costs. Low-friction engineering translates to more responsive steering and reduced binding in extreme suspension articulation scenarios common in off-road tactical deployments.

This component is specified for vehicle platforms requiring precision upper control arm geometry and is favored in both law enforcement fleet applications and military tactical vehicle builds. Operators and vehicle technicians value QA1 ball joints for their geometric accuracy and serviceability in high-demand environments. Whether configuring a patrol unit, tactical support vehicle, or performance off-road platform, the QA1 upper ball joint provides the steering precision and durability needed for dependable handling under loaded conditions.

QA1 has established itself in the performance suspension market by prioritizing engineering accuracy and maintainability. This upper ball joint exemplifies that focus—delivering correct geometry, low friction, and field-serviceable construction that appeals to serious vehicle builders and fleet operators alike.