Suspension Tube 4in x 5/8-18 THD

The Suspension Tube 4in x 5/8-18 THD by WEHRS MACHINE is a precision-engineered control arm component designed for serious suspension builders and performance-oriented mechanics. This threaded tube serves as a critical link in modern coilover and adjustable suspension systems, allowing fine-tuned geometry adjustments and custom ride height configurations. Whether you're building a competition-grade race car, restoring a classic with contemporary suspension technology, or dialing in a street performance platform, this component delivers the adjustability and structural integrity required for demanding applications.

The 4-inch length paired with the 5/8-18 threaded specification reflects WEHRS MACHINE's commitment to precision manufacturing standards. The 5/8-18 thread pitch (standard SAE coarse threads at 5/8-inch diameter) ensures compatibility with industry-standard spherical rod ends, heims, and adjustment components commonly found in suspension kits from leading manufacturers. Constructed from quality steel tubing, this suspension tube maintains dimensional consistency and handles the cyclic loads inherent to suspension movement without flex or deflection. The lightweight 0.36-pound design minimizes unsprung mass, contributing to improved ride quality and responsive handling characteristics.

This suspension tube is ideal for fabricators, suspension shops, and enthusiasts undertaking custom control arm builds or coilover system installations on street cars, drag platforms, and road-course vehicles. The threaded ends allow simple swapping of rod ends to adjust camber, caster, and anti-dive geometry without requiring specialized welding or machining. Installation requires basic mechanical knowledge—thread the tube into your selected rod ends or heim joints, lock with jam nuts, and dial in your suspension geometry using a quality alignment rack. Verify thread compatibility with your chosen spherical components before assembly to ensure proper fit and performance.