What does the spring rate of 300 lb/in mean?

A spring rate of 300 lb/in means that it takes 300 pounds of force to compress the spring by one inch. This rate affects how stiff or soft your suspension feels, influencing ride comfort and handling.

What size coilover shocks does this spring fit?

This coilover spring is designed to fit shocks with a 2.5-inch inner diameter. It measures 8 inches in length, which is important for proper fitment within the shock assembly.

What is the finish on this spring?

The spring has a silver powder coat finish. This coating helps protect the spring from corrosion and gives it a clean, finished look.

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Specifications

Brand: FOX
Part #: 039-33-300-A

Fox Coilover Spring 8.000 TLG X 2.500 ID X 300 lbs/in. Silver

Name: Fox Coilover Spring 8.000 TLG X 2.500 ID X 300 lbs/in. Silver
Brand: FOX
SKU: fox-fox-coilover-spring-8-000-tlg-x-2-500-id-x-300-lbs-in-silver-t14-178956
Price: 101.00 USD
Availability: BackOrder

$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 8" x 2.5" ID, 300 lb/in rate. Silver.

Key Features

Fits 2.5-inch inner diameter coilover shocks.
Spring rate is 300 pounds per inch.
Spring measures 8 inches in length.
Features a silver powder coat finish.
Manufactured by Fox.

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About this part

Product Details

This Fox coilover spring measures 8 inches long with a 2.5-inch inner diameter and a spring rate of 300 pounds per inch. The silver finish is a clean look for your suspension build. Choosing the right spring rate is crucial for dialing in your vehicle's handling and ride quality. A 300 lb/in rate is a common choice for many applications looking for a firmer ride than stock, but not excessively stiff, offering a good balance for performance and daily driving.

Fox is known for its suspension components, and these springs are built to handle the demands of off-road and performance driving. They are designed to work with many common 2.5-inch diameter coilover bodies. Proper spring selection helps manage body roll during cornering and absorbs impacts effectively, contributing to a more controlled and comfortable ride, especially when paired with quality shocks.