5/8 Aluminum Scalloped Tube - 21in.

The 5/8 Aluminum Scalloped Tube - 21in. from QUICKCAR RACING PRODUCTS is a precision suspension component engineered for street and race applications where adjustability and weight savings are critical. Built for high-performance vehicles and dedicated track builds, this aluminum suspension tube serves as a critical adjustment point in independent suspension systems, allowing tuners and fabricators to dial in ride height and geometry with precise control. The scalloped design reduces unsprung mass while maintaining structural integrity under demanding cornering loads and dynamic weight transfer.

Manufactured in black anodized and natural aluminum finishes, the tube features a 5/8-inch diameter with 5/8-18 female thread engagement at each end, providing a standardized connection point compatible with common suspension rod ends and spherical joints found in custom fabrication and racing setups. The anodized finish protects against corrosion and oxidation, extending service life in salt-air and high-humidity environments, while the natural option offers a clean appearance for show-quality builds. At 21 inches in length and weighing only 1.1 pounds, this tube minimizes rotational inertia and reduces overall vehicle weight without sacrificing load-carrying capacity—a key advantage in competitive motorsports where every pound matters.

Fabricators, suspension tuners, and DIY enthusiasts building independent front or rear suspension systems will appreciate the precision threading and consistent bore—essential for maintaining alignment tolerances across bracket and control arm assemblies. This tube integrates seamlessly into custom A-arm kits, radius rod assemblies, and adjustable suspension platforms commonly found in street rods, race cars, and off-road vehicles. Installation requires only standard rod-end sockets and basic hand tools; thread the tube directly into prepared female rod ends using appropriate threadlocker to prevent vibration-induced loosening during competition or aggressive driving.