What does the spring rate (350 lbs/in) mean for my vehicle's handling?

A 350 lbs/in spring rate means that for every inch the spring is compressed, it exerts 350 pounds of force. This rate is often chosen for improved body control during cornering and better support for the vehicle's weight compared to stock springs.

What is the inner diameter (ID) of this coilover spring?

This coilover spring has an inner diameter of 2.5 inches. This is a common size for many aftermarket coilover systems, but it's always best to verify your existing coilover body diameter before purchasing.

Does this spring come with any hardware?

This product is for the coilover spring only. Any necessary hardware, such as spring perches or retainers, would typically be part of the complete coilover assembly or sold separately.

Fox Coilover Spring 10" x 2.5" 350 lb/in Silver 039-10-350-A

Name: Fox Coilover Spring 10.000 TLG X 2.500 ID X 350 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-10-000-tlg-x-2-500-id-x-350-lbs-in-silver-t14-178876
Price: 101.00 USD
Availability: BackOrder

Fox Coilover Spring 10.000 TLG X 2.500 ID X 350 lbs/in. Silver

$101.00

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 10" x 2.5" 350 lb/in. Silver.

Key Features

Fits standard 2.5-inch ID coilover bodies.
Spring rate is 350 lbs/in for controlled suspension response.
Measures 10 inches in length.
Silver finish for durability and appearance.
From a popular suspension brand, Fox.

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Product Details

When you're rebuilding or upgrading your suspension, getting the right spring rate is key to how your vehicle handles. This Fox coilover spring is designed to give you a specific amount of resistance, measured in pounds per inch (lbs/in), which directly affects how the suspension compresses and rebounds under load.

This particular spring measures 10 inches long with an inner diameter of 2.5 inches and a rate of 350 lbs/in. That rate is a solid choice for many applications where you want a noticeable improvement in body control without making the ride too harsh. The silver finish not only looks good but also offers a layer of protection against the elements. Fox is a well-known name in suspension, and their springs are built to perform.

When selecting a spring, consider the total weight of your vehicle and how you plan to use it. A higher spring rate generally means less body roll in corners and better support for heavier loads, while a lower rate offers a softer ride. This 350 lb/in spring offers a good balance for many performance-oriented setups.