What does a 400 lb/in spring rate mean for my vehicle?

A 400 lb/in spring rate means that for every inch the spring is compressed, it requires 400 pounds of force. This rate generally offers a firmer ride than stock, improving body control during cornering and braking, while still being manageable for daily use.

What is the inside diameter of this spring?

This coilover spring has an inside diameter of 3 inches. It's important to ensure this matches the requirements of your existing coilover shock body or system.

Does this spring come with any hardware?

This product is for the coilover spring only. Any necessary hardware, such as spring perches or collars, would typically be part of your existing coilover system or purchased separately.

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Specifications

Brand: FOX
Part #: 039-36-400-A

Fox Coilover Spring 10.000 TLG X 3.00 ID X 400 lbs/in. Silver

Name: Fox Coilover Spring 10.000 TLG X 3.00 ID X 400 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-10-000-tlg-x-3-00-id-x-400-lbs-in-silver-t14-178700
Price: 160.00 USD
Availability: BackOrder

$160.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fox 10" coilover spring, 3" ID, 400 lb/in rate. Silver.

Key Features

Fits vehicles with coilover systems accepting 10" length, 3" ID springs.
Spring rate is 400 pounds per inch for a balanced performance feel.
Measures 10 inches in length.
Features a 3-inch inside diameter.
Finished in silver for a clean appearance.

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About this part

Product Details

Fox is well-known for its high-performance suspension components, and this coilover spring is a solid example of their work. This specific spring measures 10 inches long with a 3-inch inside diameter and a spring rate of 400 pounds per inch. It's finished in silver, giving your suspension a clean look.

A 400 lb/in spring rate is a common choice for many performance applications, offering a noticeable improvement in handling without being overly stiff for daily driving. This spring is designed to work with many popular coilover systems that accept these dimensions, allowing you to fine-tune your vehicle's ride height and stiffness. Proper spring selection is key to achieving the desired balance between comfort and control for your specific vehicle and driving style.