What does the spring rate of 450 lbs/in mean for my vehicle?

A 450 lbs/in spring rate means that for every inch the spring is compressed, it will exert 450 pounds of force. This rate is stiffer than many stock springs, which can lead to improved handling, less body roll in corners, and better support for heavier loads.

Will this spring fit any coilover shock?

This spring is designed with a 2.5-inch inner diameter, which is a common size for many aftermarket and some OEM performance shock absorbers, particularly those from Fox. However, you must verify that your specific shock absorber has a 2.5-inch spring perch to ensure a proper fit.

What other parts might I need when installing this coilover spring?

When replacing coilover springs, you may need to adjust or reuse spring perches, collars, and potentially bump stops depending on your shock absorber setup. It's always best to consult the installation instructions for your specific Fox shock absorber model.

Fox Coilover Spring 16" x 2.5" ID x 450 lb/in Silver 039-40-

Name: Fox Coilover Spring 16.000 TLG X 2.50 ID X 450 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-16-000-tlg-x-2-50-id-x-450-lbs-in-silver-t14-178946
Price: 160.00 USD
Availability: BackOrder

Fox Coilover Spring 16.000 TLG X 2.50 ID X 450 lbs/in. Silver

$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 16" x 2.5" ID x 450 lb/in. Silver

Key Features

Fits vehicles using Fox shock bodies with a 2.5-inch inner diameter spring perch.
Spring rate is 450 pounds per inch, providing a stiffer suspension response.
Spring length is 16 inches, contributing to ride height and suspension travel.
Silver powder coat finish for durability and appearance.
Designed for use with compatible Fox shock absorber bodies.

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Product Details

This is a Fox 16-inch long coilover spring with a 2.5-inch inner diameter and a spring rate of 450 pounds per inch. It comes in a silver finish. This spring is designed to work with specific Fox shock bodies, allowing you to fine-tune your vehicle's suspension performance. Choosing the right spring rate is crucial for achieving the desired ride height and handling characteristics, whether you're looking for a firmer feel for off-road use or a more controlled response on pavement.

The 450 lb/in spring rate offers a noticeable increase in stiffness over stock springs, which can help reduce body roll during cornering and improve stability under load. The 2.5-inch inner diameter is a common size for many aftermarket and some OEM performance shock absorbers, ensuring a good fit with compatible shock bodies. The 16-inch length is also a standard dimension that helps determine the overall travel and ride height of the suspension system.

When installing these springs, it's important to ensure they are properly seated on the shock body and that any associated hardware, like spring perches and collars, are correctly adjusted. This spring is a well-built component from Fox, a brand known for its suspension expertise, and is a solid option for those looking to customize their vehicle's suspension setup.