QA1 HK01-FM01 Level 1 Full Vehicle Handling Kit, 64-66 Mustang

QA1

SKU
HK01-FM01
$3,303.95
Estimated Shipping Date: Jun 25, 2026
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Transform the way your early Mustang drives with QA1’s Level 1 Full Vehicle Handling Kit. Designed specifically for 1964–1966 Mustangs, this all-in-one suspension package delivers modern handling, improved ride quality, and a more confident driving feel - all in a system engineered for straightforward installation.

MODERN HANDLING FOR CLASSIC PERFORMANCE

Factory springs and stamped control arms can’t deliver the precision or stability today’s performance drivers expect. QA1’s Level 1 system replaces those components with modern, performance-engineered parts that improve suspension geometry, reduce body roll, and make your Mustang feel more planted and predictable.

STRAIGHTFORWARD INSTALLATION

QA1 designed this kit to make modern performance attainable for any classic Mustang builder. The front suspension is a true bolt-in system, retaining the factory shock towers for a clean fit. The rear axle is controlled with QA1’s single adjustable shocks for simple adjustments to both compression and rebound simultaneously. Once installed, you’ll enjoy a significant improvement in handling and overall driving experience.

FEATURES & BENEFITS

  • Application-specific fit for 1964–1966 Ford Mustangs
  • Bolt-in front coilover system with QA1 Pro Coil shocks and springs
  • Tubular upper and lower control arms improve strength and geometry
  • Adjustable front ride height: stock to –2”
  • Front sway bar reduces body roll and sharpens cornering response
  • Single adjustable shocks with 18 rebound/compression settings
  • All hardware and brackets included
  • Durable powder-coated components for long-lasting finish

FITMENT NOTES

  • Fits 1964–1966 Ford Mustangs
  • Adjustable front ride height: stock to –2”
  • Front suspension installs using factory mounting points (no cutting or modification required)

Specifications

  • Performance LevelLevel 1
  • Includes ShocksYes
  • Front Spring Rate350lb/in.
  • Shock ValvingSingle Adjustable

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 coilovers, 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 coilover conversion and rear sway bar.

Can I keep my factory brakes and axle?

Yes. The Level 1 kit is designed to work with your factory rear axle and most OEM-style brake systems.

How much can I lower my car with this kit?

QA1 coilovers provide front ride height adjustability from stock height down to approximately 2” lower, letting you fine-tune stance and handling.

Is this suspension setup good for daily driving?

Absolutely. It’s tuned for street comfort and performance, offering a smoother, more stable ride than stock with sharper cornering response.