Front Pro Coil Shock System, Double Adjustable, Ford, 10in. Spring, 450lb./in. (PART #QA1-MD401-10450C)

QA1 Double Adjustable Pro-Coil kits are an excellent choice for any Classic Mustang owner looking for a better stance, ride quality and performance. These easy-to-install bolt-in kits are a great solution for adjustable ride height, and the double adjustable valving provides ample range of tunability from the street to the track.

DIAL IN THE PERFECT STANCE

Achieving the perfect, level stance is critical for the overall look and appearance of your car. Mustang Pro-Coil kits offer 0 to "“2 inches of ride height adjustability. Adjustments within this range can be made with a simple turn of the spring seat nut. For an additional drop beyond 2 inches, consider adding drop spindles to your car.

TUNE YOUR RIDE COMFORT & PERFORMANCE

Double-adjustable coilovers are ideal for drivers looking for great performance on the street or track. Independent tuning of compression and rebound allows you to fine-tune the handling or straight-line performance of your vehicle for any driving condition. Accessing the 18-position knob is easy, and by turning the steering wheel to full lock, you can reach in and make your tuning adjustments at the base of the shock.

QA1 Pro-Coil kits feature high-travel, USA-made coil springs built to deliver optimal performance. Spring rates are tailored to your vehicle's weight and driving style. Need help choosing the correct spring rate?

Watch this video

!

EASY, BOLT-IN INSTALLATION

Mustang Pro-Coil Kits seamlessly bolt-in with Original Equipment (OE) control arms.

MADE IN THE USA

QA1 shocks are proudly made in Lakeville, Minnesota.

See a complete video

on the manufacturing process.

FEATURES AND BENEFITS

Achieve the ultimate balance of ride quality and performance with with independent tuning of rebound and compression valving.

Proudly made in the USA

BEST-IN-CLASS WARRANTY

QA1 Single Adjustable Pro-Coil Kits are eligible for a Limited Lifetime Warranty. For peace of mind, simply register your shocks at

QA1.net/Warranty

to ensure coverage for as long as you own your vehicle.

FITMENT NOTES

Spanner wrench: P/N T114W or T115W (required) Thrust Bearing Kits (optional): P/N 7888-109

RECOMMENDED FRONT SPRING RATE CHART

YEAR

MODEL

SMALL BLOCK SPRINGS

BIG BLOCK SPRINGS

1964-1966

Mustang

350

450

1967-1973

Mustang

400

500