What does 'double adjustable' mean?

Double adjustable coilovers allow you to independently adjust the rebound and compression of the shock. This lets you fine-tune the suspension to your driving style and road conditions. Each adjustment has 18 clicks, giving you a wide range of settings.

How much can I lower my Mustang with this system?

This coilover system lets you adjust your Mustang's ride height from the factory stock height down to 2 inches lower. This allows you to achieve a more aggressive stance while maintaining proper suspension geometry for predictable handling.

Is this a difficult system to install?

QA1 designed this system as a direct bolt-in replacement for your factory suspension components. No welding or cutting is required, making it a straightforward installation with standard tools. Refer to the manufacturer's installation instructions for specific procedures and torque specifications.

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

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Specifications

Brand: QA1
Part #: MD401-10350C
UPC: 806990158635

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

Name: QA1 64-66 Ford Mustang Pro Front Coil-Over System - Double Adj. - 10in x 350lbs/in - Aluminum
Brand: QA1
Price: 1171.52 USD
Availability: InStock

$1171.52

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Take your classic Mustang's suspension to the next level with this double adjustable coilover kit.

Key Features

Double adjustable — Independently adjust rebound and compression
Adjustable ride height — Fine-tune your Mustang’s stance from factory stock height down to 2” lower
Bolt-in installation — No welding or cutting required
10” coil springs — 350 lb./in. spring rate balances comfort and handling

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Ford Mustang 1964-1966

Product Details

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.