QA1 Pro Front Coil-Over System for 1967-1973 Ford Mustang - Single Adjustable - 10in x 450lb/in - MS402-10450C

Fits 1967-1973 Ford Mustang models, including Base, Mach 1, Grande, Boss 302/351/429, and Shelby GT-350/GT-500.

The QA1 Pro Coil System is a high-performance front suspension upgrade designed to modernize the handling and stance of classic Mustangs. This single-adjustable kit features lightweight aluminum shock bodies paired with 10-inch coil springs at a 450 lb/in rate. This specific spring rate is engineered for aggressive street performance and restomod applications, providing maximum roll control and sharp steering response.

The system utilizes a single adjustment knob to simultaneously fine-tune rebound and compression through 18 valving settings, allowing you to quickly transition from a comfortable cruise to a firm track setup. The threaded shock body enables precise ride height adjustments from factory stock height down to a 2-inch drop. Designed as a direct bolt-in solution, this kit installs into factory mounting locations without the need for cutting or welding.

• Manufacturer Part Number: MS402-10450C
• Damping Control: Single adjustable with 18 rebound/compression settings
• Spring Specifications: 10-inch length with 450 lb/in spring rate
• Ride Height Range: Factory stock to -2 inches
• Materials: Machined aluminum shock body and powder-coated high-tensile steel springs
• Compatibility: Works with factory or QA1 tubular control arms and sway bars
• Installation: Direct bolt-in; no welding or chassis modification required