64-66 Mustang QA 1 Level 1 Full Vehicle Suspension Handling Kit

Why Mustang Builders Choose This Kit for their 64-66 Mustangs

Precision-Engineered for Classic Chassis

This kit replaces outdated factory springs and stamped control arms with performance-oriented components that dramatically improve suspension geometry and stability — letting your Mustang handle like a modern machine without trading comfort for capability.

Balanced Street Performance

• Bolt-in front Coil-overs with QA1 Pro Coil shocks and springs: add ride height adjustability, 18-position Compression/Rebound settings that yield responsive handling.

• Tubular upper & lower control arms: engineered for strength and improved steering precision.

• Front sway bar: reduces body roll and sharpens turn-in feel.

• Single-adjustable rear shocks: 18-position compression/rebound settings let you dial in ride firmness for your driving style using standard leaf springs in the rear.

Driver-Focused Adjustability

• Adjustable front ride height from stock to –2″ gives you stance control plus handling benefits.

• All necessary hardware, brackets, and bolt-in design means installation is straightforward and doesn’t require cutting or chassis modification.

Perfect For Mustang Enthusiasts Who Want:

✔ Sharper handling without sacrificing street comfort
✔ Better cornering confidence and reduced body roll
✔ Improved suspension geometry with modern components
✔ A direct fit designed for classic Mustang builders.

Key Specifications of Kit

• Application: 1964–1966 Ford Mustang suspension upgrade

• Spring/Shock Configuration: Front QA1 Pro Coilovers + rear single-adjustable shocks

• Spring Rate: ~350 lb/in (front) - Designed for 289/302 SMALL BLOCK Engines (If you have anything different, please contact us)

• Adjustment: 18 rebound/compression settings on shocks

• Ride Height Control: Front height adjustable down to –2 Inches Below stock

Frequently Asked Questions (FAQ's)

What’s included in QA1’s Level 1 Full Vehicle Handling Kit for 1964–1966 Mustangs?
The kit includes QA1 single adjustable front coil-overs, tubular upper and lower control arms, a front sway bar, and single-adjustable rear shocks.

What’s the difference between QA1 Level 1 and Level 2 Handling Kits?
Both include QA1 front coil-overs, control arms, and sway bar. The Level 2 handling kit upgrades to double-adjustable shocks and includes QA1’s triangulated rear 4-link coil-over conversion and rear sway bar.

Can I retain my factory front/rear brakes and Rear Axle Housing?
Yes. The Level 1 kit is designed to work with the stock rear axle and most OEM-style brake systems.

How much can I lower my Mustang with this kit?
QA1’s adjustable coil-overs provide front ride height adjustability from stock height down to approximately 2” lower, allowing you to fine-tune stance and performance.

Is this suspension setup comfortable for street use?
Yes. It’s tuned for a balance of comfort and performance, making it ideal for street-driven Mustangs that demand modern ride quality and control.