QA1 64-66 Ford Mustang Pro Front Coil-Over System - Double Adj. - 10in x 350lbs/in - Aluminum

Take your classic Mustang’s suspension to the next level with QA1’s Pro Coil System. Engineered specifically for 1964–1966 Mustangs, this double adjustable coilover kit gives you complete control over ride quality, stance, and performance. Featuring 10” coil springs with a 350 lb./in. spring rate, it’s an ideal setup for drivers who want a balance of comfort and handling with full adjustability for any driving situation. TOTAL SUSPENSION CONTROL QA1 double adjustable coilovers allow independent adjustment of rebound and compression. With 18 clicks for each, you can precisely tune how your Mustang reacts to bumps, corners, and acceleration. Whether you’re cruising, carving corners, or dialing in track settings, this system gives you unmatched control. RIDE HEIGHT FLEXIBILITY Fine-tune your Mustang’s stance with adjustable ride height from factory stock height down to 2” lower. Achieve the aggressive look you want while maintaining proper suspension geometry for predictable handling. EASY BOLT-IN INSTALLATION QA1 designed this system as a direct bolt-in replacement. No welding, no cutting - just straightforward installation with standard tools. Perfect for DIY enthusiasts and builders who want modern performance without fabrication.

Additional Information

Front Pro Coil double adjustable stock mount shock kit. Includes 10" spring with rating of 350 and a flat end.

Part Type

Coilover Set

Product Overview

QA1 Pro Coil Systems for 1964-1973 Mustangs are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match, and you are on your way. These shocks also utilize a fully threaded body that allows you to adjust your ride height for the perfect stance or to finely tune the weight balance for superior handling. Adjustable Pro Coil System Features:, Available in independent compression and rebound double adjustable, simultaneous compression and rebound single adjustable, or drag "R" Series adjustable, Lightweight Billet Aluminum Coil-Over Shocks, High Travel Springs, Easy, Bolt-In Installation, Ride Height Adjustable, 100% Dyno Tested and Serialized, Serviceable and Rebuildable by QA1 Authorized Service Centers, Made in the USA, Used in drag racing, street performance, autocross, road racing and street rod applications, Sold in Pairs

• Application-specific fit for 1964–1966 Ford Mustangs
• Complements QA1 control arms and sway bars for a complete suspension solution
• Direct bolt-in installation - no welding required
• Double adjustable shocks with 18 settings each for rebound and compression
• Includes 10” coil springs with a 350 lb./in. spring rate
• Powder-coated springs and premium hardware for durability
• Ride height adjustable: factory to –2”

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Coilover Kit, Pro Coilover System, Front, Double Adjustable, Ford, Pair

QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.