What does the spring rate (150 lbs/in) mean for my vehicle's ride?

A 150 lbs/in spring rate means that for every inch the spring is compressed, it exerts 150 pounds of force. A higher spring rate like this generally results in a firmer ride and improved body control during cornering or over bumps compared to a softer, stock spring.

What is the inner diameter of this coilover spring?

This FOX coilover spring has an inner diameter of 3 inches. It's important to ensure your coilover shock body is designed to accept this specific diameter for proper fitment and function.

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 assembly or would need to be sourced separately.

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Specifications

Brand: FOX
Part #: 039-37-150-A

Fox Coilover Spring 12.000 TLG X 3.00 ID X 150 lbs/in. Silver

Name: Fox Coilover Spring 12.000 TLG X 3.00 ID X 150 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-12-000-tlg-x-3-00-id-x-150-lbs-in-silver-t14-178932
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" long, 3" ID, 150 lb/in. Silver.

Key Features

This is a FOX coilover spring.
Spring measures 12 inches in length.
Spring has a 3-inch inner diameter.
Spring rate is 150 lbs per inch.
Features a silver finish.

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About this part

Product Details

If you're looking to fine-tune your suspension's ride height and spring rate, this FOX coilover spring is a solid option. It's designed to work with coilover systems that accept a 12-inch long spring with a 3-inch inner diameter. The 150 lb/in spring rate offers a noticeable change from stock, providing a firmer feel that can improve handling on rougher terrain or during spirited driving.

This spring is well-built with a silver finish, offering a clean look under your vehicle. The 150 lb/in rate is a popular choice for many off-road applications where a balance between comfort and control is needed. It's a direct replacement for your existing spring, making the swap straightforward if you're comfortable working on suspension components.