What is the benefit of adjustable valving?

Adjustable valving lets you fine-tune the shock's damping characteristics to match your driving style and road conditions. By adjusting the rebound, you can control how quickly the shock returns to its original position after compression, improving handling and ride quality.

Are these shocks rebuildable?

Yes, these QA1 shocks are rebuildable and revalveable by the QA1 factory or QA1 authorized service centers. This allows you to extend the life of your shocks and customize the valving to suit your specific needs.

What spring rate should I choose?

The correct spring rate depends on your vehicle's weight, intended use, and personal preferences. QA1 offers several spring rate options to help you find the right coil-over conversion system for your application.

QA1

QA1 Ford Mustang II Pro Front Coil-Over System (1/2in Bearing) - Single Adj. - 8in x 700lbs/in

Name: QA1 Ford Mustang II Pro Front Coil-Over System (1/2in Bearing) - Single Adj. - 8in x 700lbs/in
Brand: QA1
Price: 813.54 USD
Availability: InStock

$813.54

Get the right stance and weight balance with this adjustable coil-over system. Includes shocks, springs, and hardware.

Key Features

Ride height adjustable — get the perfect stance
Single adjustable valving — adjust rebound to suit your driving style
Lightweight aluminum shocks — reduces unsprung weight
Chrome plated springs — resists corrosion
Bolt-in installation — no welding required
100% dyno tested and serialized — ensures consistent performance

⚠️ 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

Fits this vehicle

Ford Mustang II 1974-1978

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Product Details

For unmatched ride quality for the street and strip, turn to QA1's Mustang II Pro Coil Shock Systems. With double adjustable, single adjustable, drag "R" series adjustable and non-adjustable valving options, along with four spring rate options, you will find the right coil-over conversion system for you. These shocks are designed to give you the lower ride height and "in the weeds" stance you're looking for, and they 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. Used in drag racing, street performance, autocross, road racing and street rod applications. Each pro coil system includes (2) QA1 high performance shocks, (2) chrome plated, specially designed springs and all mounting hardware. Adjustable Mustang II Pro Coil Systems, Made in the U.S.A., Easy, Bolt-In Installation, Coil-Over, Ride Height Adjustable, Lightweight Aluminum, 100% Dyno Tested and Serialized, Rebuildable and Revalveable by the QA1 Factor or QA1 Authorized Service Centers, Sold in Pairs, , Steel Non-Adjustable Mustang II Pro Coil Systems, Easy, Bolt-In Installation, Coil-Over, Ride Height Adjustable, Polished and Chrome Plated Steel Shocks and Springs, 100% Dyno Tested and Serialized, Sold in Pairs.