5/16 Aluminum Scalloped Tube - 17.5in.

The QUICKCAR RACING PRODUCTS 5/16 Aluminum Scalloped Tube – 17.5 inches is a precision suspension component engineered for drag racing, bracket racing, and high-performance street applications. This aluminum suspension tube features scalloped design geometry and a 5/16-24 female threaded end, delivering a lightweight yet rigid connection point for upper and lower suspension links in adjustable race car setups. At just 0.37 lbs, the tube minimizes unsprung weight while the aluminum construction with black anodized or natural finish resists corrosion under demanding track and street conditions.

The 17.5-inch length positions this tube as a mid-range option within the suspension geometry toolkit, fitting applications requiring controlled suspension travel and geometry control without excessive packaging constraints. The 5/16-24 female thread accommodates standard adjuster rod ends and rod bearing assemblies commonly paired in chassis fabrication and suspension tuning. Aluminum material selection reduces rotating and reciprocating mass, improving ride quality and suspension response while maintaining sufficient rigidity for bump-stop loads and cornering forces typical in racing environments. The scalloped profile reduces material where unnecessary while preserving structural integrity at load points.

This component is purpose-built for racers and chassis builders constructing independent or dependent suspension systems with adjustable geometry requirements. It serves bracket racing, drag racing, and circle-track applications where suspension tuning and weight reduction directly impact lap times and elapsed times. The 17.5-inch dimension accommodates both front and rear upper/lower link positions depending on frame dimensions and suspension layout. Verification of thread compatibility with your specific rod ends and bearing assemblies before purchase ensures correct fitment.

QUICKCAR Racing Products manufactures suspension and drivetrain components specifically for the racing market, with aluminum tube assemblies available in multiple lengths to support scalable suspension designs. The 5/16-24 female thread is a standard fastening interface in racing suspension, allowing builders to configure geometry using adjustable rod ends and heim joints from major manufacturers. Comparison with steel alternatives reveals the weight savings advantage—aluminum tubes reduce unsprung weight by approximately 40–50% for equivalent rigidity, a critical factor in bracket racing where 0.01-second improvements compound over a season.