Radius Rod 5/8in Alum 16in Black

The Radius Rod 5/8in Alum 16in Black from ALLSTAR PERFORMANCE is a lightweight suspension component engineered for street rods, race cars, and high-performance vehicles requiring precision geometry control. This 16-inch aluminum radius rod is designed to locate the rear axle and control lateral movement while minimizing unsprung weight—a critical consideration when building or upgrading suspension systems. Whether you're fabricating a custom chassis or refining an existing setup, this component provides the geometry flexibility and durability serious builders and mechanics demand for predictable handling and cornering performance.

Constructed from aluminum and finished in black anodized coating, the Radius Rod 5/8in Alum 16in Black offers corrosion resistance and a clean aesthetic while reducing overall suspension mass compared to steel alternatives. The rod features a 1.125-inch outer diameter tube with 5/8-18 inch female threads on both ends, allowing secure installation into frame brackets and rear axle housings using industry-standard fasteners. The 16-inch length suits a wide range of wheelbase configurations and rear-end placements, making it versatile across different vehicle types. Aluminum construction also simplifies modifications and custom fabrication if geometry adjustments become necessary during suspension tuning or frame-up builds.

This radius rod is ideal for hot rod builders, race car fabricators, and suspension specialists assembling independent rear suspensions or four-link setups on street performance vehicles and competition platforms. The 0.68-pound weight contributes meaningfully to unsprung mass reduction, improving acceleration response and ride quality. Installation requires proper alignment and torque specifications to frame and axle mounting points; verify clearance and geometry using appropriate measurement tools before final assembly. Compatible with most custom suspension brackets and standard 5/8-inch fasteners, this component integrates seamlessly into fabricated or bolt-on suspension systems for vehicles ranging from classic hot rods to modern performance builds.