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67-73 Mustang QA1 Front Pro Coil-Over Shock Kit, Double Adjustable, 450lb Springs

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QA1-MD402-10450C

QA1 Pro Coil-Over Front Suspension System for 1967-73 Ford Mustang, Double Adjustable, 450lb. Springs (Small Block Engines)

Transform the front-end performance of your 1967–1973 Ford Mustang with the QA1 Pro Coilover Suspension System—a modern, bolt-in upgrade designed for aggressive street driving, pro-touring builds, and restomods. This system delivers improved handling, precise ride control, and adjustable stance without cutting or welding your classic Mustang.

Featuring QA1’s double-adjustable setup, this kit includes 10” coil springs with a 450 lb./in. spring rate; tailored for heavier ’67–’73 cars, offering the strength and balance needed for street performance, restomods, and spirited driving. This coil-over shock and spring kit will install using your stock upper control arms or the upgraded QA1 Tubular Upper Control Arms (recommended). 

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Pricing: $1,079.95
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FREE SHIPPING on orders *$199 or more

Special Notes

MODERN HANDLING WITH SIMPLE ADJUSTABILITY

QA1’s double-adjustable coilover shocks allow you to tune independent rebound and compression controls with 18 clicks each. With 18 levels of adjustment, it’s easy to dial in a comfortable street ride or tighten things up for maximum cornering performance—all in seconds.

ADJUSTABLE RIDE HEIGHT & STANCE

This front coilover system lets you fine-tune ride height from factory stock down to 2 inches lower, giving you full control over stance, suspension geometry, and wheel/tire clearance. Perfect for Mustangs running larger wheels or seeking a more aggressive, planted look.

TRUE BOLT-IN INSTALLATION

Designed specifically for 1967–1973 Mustangs, this QA1 Pro Coil System installs with no cutting, drilling, or welding required. It bolts directly into the factory mounting locations, making it a garage-friendly upgrade with professional-level results.

FEATURES & BENEFITS

  • Direct-fit front coilover system for 1967–1973 Ford Mustangs

  • Double-adjustable shocks with 18 rebound and 18 compression settings

  • Includes 10” 450 lb./in. coil springs

  • Ride height adjustable from stock to –2 inches

  • Improves handling, reduces body roll, and enhances steering feel

  • Durable powder-coated springs with premium QA1 hardware

  • Compatible with factory control arms or QA1 tubular control arms & sway bars

  • No welding or fabrication required

  • Sold as a pair (front)

FITMENT NOTES

  • Fits 1967–1973 Ford Mustang

  • Front suspension application

  • Works with factory or QA1 tubular control arms

  • Includes double-adjustable shocks and 10” 450 lb./in. springs

  • Bolt-in installation

  • Ride height adjustable: stock to –2”

  • Sold as a pair

RECOMMENDED FRONT SPRING RATE GUIDE

Year Model Small Block Big Block
1964–1966 Mustang 350 lb/in 450 lb/in
1967–1973 Mustang 400 lb/in 500 lb/in

(This kit includes 450 lb/in springs)

SPECIFICATIONS

  • Spring Rate: 450 lb/in

  • Springs Included: Yes

  • Shock Valving: Double Adjustable

  • Vehicle Position: Front

 

Frequently Asked Questions (FAQS)

What spring rate is included with the QA1 MD402-10450C coilover kit?
This kit comes equipped with 10-inch front coil springs rated at 450 lb./in., tailored for heavier ’67–’73 cars, offering the strength and balance needed for street performance, restomods, and spirited driving.

How much ride height adjustment is available on a 1967–1970 Mustang?
QA1 Pro Coilovers allow you to adjust ride height from factory stock down to approximately 2 inches lower, giving you full control over stance and handling.

How do QA1 double-adjustable coilovers function?
Double-adjustable shocks use two adjustment knobs to control rebound and compression independently. With 18 adjustment settings on each, you can quickly tailor the ride from comfortable cruising to performance-focused handling.

Does the QA1 coilover system require cutting or fabrication?
No modifications are necessary. The MD402-10450C is designed as a true bolt-in system and installs using basic hand tools—no welding, drilling, or cutting required.

Is a 450 lb./in. spring rate good for daily driving?
YES. The 450 lb./in. springsprovide street-friendly ride quality with the adjustability to firm things up for aggressive driving or track days.

What suspension upgrades work best with QA1 Pro Coilovers?
For maximum performance and proper suspension geometry, QA1 Pro Coils pair exceptionally well with QA1 tubular control arms and sway bars. These components are available for 1967–1970 Mustangs and complete a balanced front suspension system.

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  • FREE SHIPPING on orders *$199 or more

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