FishBone FB27370 4 Degree Leaf Spring Shim for 2.5 Inch Springs

The FishBone FB27370 4-degree leaf spring shim is designed to optimize driveline angle on off-road vehicles equipped with 2.5-inch wide leaf springs. This essential suspension component helps trail riders and rock crawlers achieve proper pinion angle alignment, which is critical for preserving U-joint health and ensuring smooth operation on challenging terrain.

Key Features:

• 4-degree angle correction for improved driveline geometry
• Fits 2.5-inch wide leaf springs (universal application)
• Durable steel construction with black powder coat finish
• Sold as a pair for complete installation
• Reduces strain on driveline components and extends U-joint life
• Ideal for lifted trucks, Jeeps, and off-road vehicles

Crafted from heavy-duty steel and finished with a corrosion-resistant black powder coating, these shims provide long-lasting performance in harsh off-road conditions. Installation allows off-road enthusiasts to correct pinion angles that may have been altered by lift kits or suspension modifications, resulting in reduced vibration and improved drivetrain efficiency. Whether you're building a hardcore rock crawler or upgrading your daily-driven trail rig, these FishBone leaf spring shims deliver reliable angle correction for optimal driveline performance.