Control Arm Screw-In Steel Shaft 8-1/2in 10Dg

The ALLSTAR PERFORMANCE Control Arm Screw-In Steel Shaft 8-1/2 inch with 10-degree geometry is a tubular upper control arm designed for high-performance suspension tuning in circle-track racing and off-road competition. This component delivers precise geometry adjustment critical for maintaining consistent tire contact and handling balance across varying track surfaces and load conditions.

Built from steel with black powder coat protection, the 8.5-inch shaft length and 10-degree screw-in ball joint design enable fine-tuned camber and caster adjustments without requiring complete arm replacement. The screw-in ball joint allows incremental geometry correction—essential for dial-in sessions where suspension geometry directly impacts lap times and tire wear rates. The universal design accommodates multiple mounting configurations, making it compatible with various double-A-arm suspension packages common in short-track racing and modified off-road vehicles.

This control arm is engineered for competitors and suspension builders who demand repeatable, adjustable geometry management. Whether setting up a circle-track car for different track configurations or fine-tuning an off-road suspension for varied terrain, the screw-in design eliminates the guesswork of static geometry by allowing mid-session or mid-event corrections. The powder-coated steel finish resists corrosion during storage and transport, maintaining structural integrity across racing seasons.

ALLSTAR PERFORMANCE control arms are recognized within circle-track racing and suspension engineering communities for precision manufacturing and repeatability. The 10-degree geometry specification positions this arm as a mid-range adjustment tool within a complete suspension package, allowing builders to dial-in alignment on existing vehicle setups rather than requiring a full suspension redesign.