9in Upper A-Arm Slotted O Degrees

The 9in Upper A-Arm Slotted O Degrees from HOWE is a precision tubular control arm engineered for vehicles requiring tight suspension geometry and responsive handling characteristics. Built for serious suspension work—whether upgrading a dedicated off-road platform, race vehicle, or high-performance street build—this upper A-arm replaces worn or inadequate OEM components with a purpose-built alternative. At 9 inches in length with zero-degree geometry, it maintains factory alignment angles while delivering the durability and adjustability that modern builders demand.

Manufactured from steel and finished in HOWE's signature blue powder coat for corrosion resistance, the upper A-arm features a slotted design paired with screw-in ball joints for precise load path control and real-world adjustability. The tubular construction minimizes unwanted compliance while reducing rotational mass—critical factors in suspension systems where even small changes in bushing compliance affect bump steer, toe-in curves, and trail-braking stability. The screw-in ball joint design allows technicians to dial in preload and vertical ride height without requiring complete arm replacement, a feature valued in both race and trail environments where tuning happens between sessions.

This control arm is ideal for builders and technicians working on dedicated suspension platforms where universal fitment and geometry control matter equally. The slotted configuration accommodates a range of mounting points, making it compatible with various chassis designs while maintaining the geometry integrity that zero-degree tuning demands. Installation requires standard suspension tools and familiarity with control arm setup; proper alignment verification after installation is essential. Whether you're building a rock crawler, drag racer, or precision street machine, HOWE's engineering and manufacturing quality ensures this upper A-arm will handle the demands of serious driving.