What does a 350 lb/in spring rate mean for my vehicle?

A 350 lb/in spring rate means that it takes 350 pounds of force to compress the spring by one inch. This rate is generally firmer than stock, offering improved body control and responsiveness during cornering and braking.

How do I know if this spring will fit my coilover shocks?

You'll need to verify that your existing coilover shocks are designed to accept a 12-inch long spring with a 3-inch inner diameter. This information is usually found in your coilover system's manual or on the manufacturer's website.

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 shock assembly.

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Specifications

Brand: FOX
Part #: 039-37-350-A

Fox Coilover Spring 12.000 TLG X 3.00 ID X 350 lbs/in. Silver

Name: Fox Coilover Spring 12.000 TLG X 3.00 ID X 350 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-12-000-tlg-x-3-00-id-x-350-lbs-in-silver-t14-178936
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 Coilover Spring 12" x 3" 350 lb/in. Silver.

Key Features

Fits many popular coilover systems.
Spring measures 12 inches long.
Features a 3-inch inner diameter.
Spring rate is 350 lbs per inch.
Silver finish for a clean appearance.

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About this part

Product Details

When you're rebuilding or upgrading your suspension, getting the right spring rate is key to dialing in your ride's handling. This Fox coilover spring is designed to work with many popular coilover systems, offering a specific spring rate to help you achieve your desired performance.

This spring measures 12 inches long with a 3-inch inner diameter and a 350 lb/in spring rate. The 350 lb/in rate is a common choice for vehicles looking for a firmer ride than stock, often used in performance street applications or light off-road setups where improved body control is desired without sacrificing too much comfort. The silver finish provides a clean look under the wheel well.

Make sure to check your existing coilover system's specifications to confirm compatibility with a 12-inch length and 3-inch inner diameter spring before purchasing.