What is shot peening and why is it important for these springs?

Shot peening is a process where a spring is blasted with hard steel pellets at high velocity. This compresses the surface of the steel, increasing its tensile strength and making the spring more durable and resistant to fatigue over its lifespan.

How does the preset process help these springs?

The springs are compressed completely until the coils touch, a process called presetting. This removes any built-up stress or fatigue from the manufacturing process, which helps prevent the spring from sagging over time and maintains its intended ride height.

What does 'closed and ground for flat fitment' mean for installation?

This means the ends of the coil spring are manufactured to be flat and perpendicular to the spring's axis. This ensures an even distribution of force when installed in your coilover assembly and makes the installation process smoother.

Skyjacker Coilover Coil Spring 3" x 12" x 150lb Black 3X12X1

Name: Skyjacker 3 In x 12 In x 150lb Universal Coilover Coil Springs
Brand: Skyjacker
SKU: skyjacker-skyjacker-3-in-x-12-in-x-150lb-universal-coilover-coil-springs-t14-875154
Price: 175.21 USD
Availability: InStock

Skyjacker 3 In x 12 In x 150lb Universal Coilover Coil Springs

$175.21

Only 4 left in stock

Skyjacker 3" x 12" x 150lb universal coilover coil springs. Made in USA with durable black powder coat.

Key Features

Skyjacker Softride Technology Enhanced Spring Performance
100 Percent Shot Peened For Durability And Long Life
Manufactured Using High Tensile Chrome Silicon Wire
Durable Black Powder Coat Resists Corrosion
Closed And Ground For Flat Fitment
Made In The USA

These are universal coilover coil springs and are not specific to any particular vehicle. Please verify dimensions and spring rate compatibility with your existing coilover setup.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Skyjacker is well-known for their Softride technology, which aims to give you a balance of off-road capability and comfortable on-road handling. These universal coilover coil springs are built using that same approach. They measure 3 inches in diameter, are 12 inches long, and have a spring rate of 150 pounds per inch, making them a solid option for many custom suspension setups.

The construction starts with high-tensile chrome silicon wire. To further increase the spring's strength and prevent sagging over time, each spring undergoes a shot peening process, where it's blasted with steel pellets. They are also preset by compressing the spring until the coils touch, which removes any stress. The ends of these springs are closed and ground flat, ensuring they sit evenly against your suspension components for consistent force distribution and easier installation.

These springs are made in the USA and finished with a durable black powder coat to resist corrosion. They are designed for universal fitment, so you'll want to confirm they match your specific coilover shock body dimensions and desired ride height and spring rate.