Mustang II Adjustable Up per Control Arm

The Mustang II Adjustable Upper Control Arm from SPC Performance is engineered for 1974–1978 Ford Mustang chassis geometry correction and performance suspension tuning. Built for enthusiasts and restoration professionals who demand precision front-end alignment, this tubular upper control arm restores proper caster and camber angles lost to factory wear or modifications. Whether you're rebuilding a classic muscle car or optimizing handling dynamics on a vintage platform, this adjustable component addresses the geometry challenges inherent to second-generation Mustang suspensions.

Constructed from steel and finished in zinc oxide plating for corrosion resistance, the Mustang II Adjustable Upper Control Arm features a screw-in ball joint design that permits fine adjustment without full disassembly. The tubular construction minimizes unsprung mass while maintaining structural rigidity under cornering loads and brake dive stress. Zinc oxide plating protects against moisture ingress and salt spray—critical for cars exposed to seasonal storage or coastal climates. The adjustable ball joint mechanism allows technicians to dial in precise alignment settings, reducing tire wear and improving steering response across varied driving conditions.

This upper control arm suits restoration shops, suspension tuners, and Mustang platform builders seeking OEM-compatible geometry correction. Each arm ships individually (sold per arm), so verify your application requires one or a pair depending on your suspension work scope. Installation demands proper alignment equipment and torque specifications per your vehicle's service manual. Compatibility is limited to Ford Mustang models 1974–1978; verify your year and suspension type before purchase to ensure correct fitment and geometry targets.