A-Arm 10.5in Screw In B/J Slotted Bearing

The A-Arm 10.5in Screw In B/J Slotted Bearing control arm by JOES RACING PRODUCTS is engineered for precision suspension tuning on high-performance vehicles and competition chassis. Built for drivers and suspension technicians who demand repeatability and adjustability, this upper control arm delivers the fine-tuning capability required in road racing, autocross, and off-road competition environments. The screw-in ball joint design allows field adjustment without full arm replacement, reducing downtime and maximizing track efficiency.

This 10.5-inch tubular control arm features a slotted bearing-style ball joint with a 10-degree geometry specification, constructed from aluminum and steel with a durable black powder-coat finish for corrosion resistance and longevity. The screw-in ball joint configuration permits real-time caster and camber adjustment during setup or between sessions, a critical advantage when dialing suspension geometry to match track conditions or vehicle changes. The aluminum/steel hybrid construction balances weight reduction with structural rigidity, essential for maintaining suspension response under dynamic cornering loads.

Competition suspension builders and serious track enthusiasts benefit most from this arm's adjustability and precision fit. Installation requires standard suspension tools and basic mechanical knowledge; compatibility depends on your specific platform's upper control arm mounting points and ball joint diameter. Verify fitment with your vehicle's suspension manual or consult a suspension specialist before purchase to ensure proper geometry alignment and safe operation.