What is the purpose of a leaf spring shim?

A leaf spring shim is used to adjust the angle of your leaf springs. This is often done after installing a lift kit to correct the driveline angle, which helps reduce vibration and wear on components like U-joints.

Does this shim require drilling new holes for installation?

No, this leaf spring shim is designed to mount in the factory locations on your 4-door Jeep Wrangler JK, meaning no additional drilling is required for installation.

What does the black textured powder coat do?

The two-stage black textured powder coat provides a durable finish that resists corrosion and wear, helping the shim hold up to off-road conditions and maintain its appearance.

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Trusted Since 1957

Est. 1957

Fishbone Offroad Universal 4in Leaf Spring Shim - Black

Specifications

Brand: Fishbone Offroad
Part #: FB27370
UPC: 810122670599

Fishbone Offroad Universal 4in Leaf Spring Shim - Black

Name: Fishbone Offroad Universal 4in Leaf Spring Shim - Black
Brand: Fishbone Offroad
SKU: fishbone-offroad-fishbone-offroad-universal-4in-leaf-spring-shim-black-t14-588140
Price: 30.71 USD
Availability: InStock

$30.71

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Fishbone Offroad leaf spring shim for 2.5in springs. Improves driveline angles and U-joint life.

Key Features

Fits 2007-2018 Jeep Wrangler Unlimited JK 4-Door models.
Improves driveline angles and U-joint life.
Features a two-stage black textured powder coat finish.
Mounts in factory locations for a no-drill installation.

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Product Details

Fishbone Offroad is known for making well-built suspension components for off-road vehicles. This universal leaf spring shim is designed to help you get your Jeep Wrangler JK dialed in after a lift. It's specifically made for 2.5-inch springs and helps correct driveline angles, which can reduce wear on your U-joints and improve how your Jeep drives.

This shim features a durable, two-stage black textured powder coat finish that holds up well against the elements. It's designed to mount in the factory locations on your 4-door Jeep Wrangler JK, making installation straightforward without needing to drill new holes. Sold as a pair, these shims are a practical addition when you're adjusting your suspension.