What spring rate should I choose?

The best spring rate depends on your driving style and intended use. A softer spring rate will provide a more comfortable ride, while a stiffer spring rate will improve handling. Consider how you use the car most often when selecting a spring rate.

How do I adjust the ride height?

These shocks use a fully threaded body. By threading the shock up or down, you can adjust your ride height. Refer to the manufacturer's instructions for the proper procedure.

What is the benefit of adjustable valving?

Adjustable valving allows you to fine-tune the damping characteristics of the shock. This lets you match the shock performance to your driving style and road conditions, improving handling and ride quality.

QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 550lbs/in - Aluminum

Specifications

Brand: QA1
Part #: MS431-09550
UPC: 806990159915

QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 550lbs/in - Aluminum

Name: QA1 03-11 Ford Crown Victoria Pro Front Coil-Over System - Single Adj. - 9in x 550lbs/in - Aluminum
Brand: QA1
Price: 961.08 USD
Availability: InStock

$961.08

Only 1 left in stock

Adjustable coil-over system lets you dial in your Crown Vic's ride height and damping. Aluminum body saves weight.

Key Features

Adjustable ride height — get the perfect stance
Adjustable valving — fine-tune handling to your driving style
Aluminum body — reduces weight

⚠️ 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

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Fits this vehicle

Ford Crown Victoria 2003-2011

Product Details

QA1 Pro Coil Systems for 2003-2011 Crown Victorias are a great option for anyone looking for fully adjustable ride height and valving control. Choose a spring rate and adjustability that fits your driving style, adjust the valving to match, and you are on your way. These shocks also 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.