Lower Ball Joint - Small Screw-In

The QA1 Lower Ball Joint — Small Screw-In (1210-107) is a precision suspension component engineered for vehicles requiring reliable steering geometry control and suspension articulation. This greasable, take-apart ball joint features a 1.500-inch taper, 3.871-inch stud length, and 5/8-18 inch thread specification, making it suitable for a range of light-duty and mid-duty applications where maintainability and serviceability are priorities.

The screw-in design allows straightforward installation and removal without specialized pressing equipment, a practical advantage in field maintenance or DIY suspension work. The greasable construction means the joint can be serviced throughout its operational life, extending component longevity compared to sealed alternatives. QA1's take-apart design permits inspection of internal wear surfaces and socket replacement without replacing the entire assembly — a cost-effective approach for operators managing long-service-life vehicles. Specifications include a standard 1.500-inch taper geometry and 5/8-18 thread pitch, ensuring compatibility with suspension systems engineered to these OEM or aftermarket standards. Hardware is included for installation.

This lower ball joint serves operators, mechanics, and enthusiasts restoring or maintaining suspension systems on vehicles that benefit from field-serviceable components. Vehicles operating in dusty, corrosive, or remote environments particularly benefit from greasable joints that can be cleaned and re-lubricated without complete replacement. QA1 lower ball joints are recognized for precision fit and repeatable performance in both street and light off-road applications.

Ball joint selection depends on taper angle, thread pitch, stud length, and load rating. The small screw-in format indicates this joint is optimized for lighter suspension geometries or compact vehicle layouts. Verify your vehicle's specification sheet or consult the OEM parts diagram to confirm taper size and thread pitch compatibility before ordering. Weighing 1.8 lbs, this is a manageable component for suspension assembly and installation.