SKU: JOE15520
UPC: 615339115099
MPN: 15520
The A-Arm 9.0in Screw-In B/J from JOES RACING PRODUCTS is a precision tubular control arm engineered for high-performance suspension tuning and competitive racing applications. This upper control arm serves as a critical suspension geometry component, allowing drivers and suspension technicians to adjust caster, camber, and ride height with precision repeatability. Whether you're fine-tuning a road-race chassis, preparing for autocross competition, or dialing in a street-performance build, this screw-in ball joint design delivers the adjustability and durability required in demanding motorsport environments.
Constructed from aluminum and steel with a black powder-coat finish, the A-Arm 9.0in features a tubular profile optimized for strength-to-weight ratio—critical for reducing unsprung mass without compromising structural integrity. The screw-in ball joint configuration enables infinite adjustability along the arm's length, allowing suspension builders to achieve precise geometric targets and accommodate various frame modifications. At 9 inches long with a 10-degree geometry angle, this control arm is engineered to fit specific suspension platforms where stock geometry limits performance potential. The standard bushing style provides reliable pivot support while the durable powder-coat finish protects against corrosion and UV degradation during extended track or road use.
This component is ideal for motorsport competitors, suspension shops, and dedicated enthusiasts building or upgrading independent front suspension systems. Installation requires proper alignment equipment and suspension geometry knowledge; compatibility depends on specific chassis and suspension design specifications. The screw-in ball joint allows field adjustment without complete arm replacement, reducing downtime during testing and competition. Verify fitment with your suspension platform and consult technical documentation or experienced builders before purchase to ensure correct geometry for your intended application.
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