SPC Performance Shims Kit

Application: Any solid axle 2WD or 4WD vehicle, 2011–2025

Part #: 89799

Overview

The SPC Performance Shims Kit 89799 is a versatile and essential upgrade for enthusiasts looking to fine-tune their vehicle's alignment and handling characteristics. Designed for use on any solid axle 2WD or 4WD vehicle, this kit allows you to adjust caster angles with precision, helping to improve steering response, stability, and tire wear. Whether you're restoring a classic, customizing a off-road rig, or optimizing your daily driver, these shims provide a reliable solution for achieving the perfect alignment setup.

Constructed with durability and ease of installation in mind, the SPC Shims Kit offers a cost-effective way to enhance your vehicle's performance without extensive modifications. By adjusting caster from 1/2° up to 4°, you'll experience improved steering feel and cornering capabilities, making your driving experience more confident and enjoyable. These shims are ideal for off-road enthusiasts, street drivers, and professional mechanics seeking precise alignment adjustments.

Key Features

SPC Performance's Shims Kit 89799 is engineered to deliver reliable and accurate caster adjustments for a wide range of solid axle vehicles. Crafted from high-quality zinc-coated steel, these shims resist corrosion and ensure long-lasting performance under demanding conditions. The kit includes six shims, providing twice the coverage with a minimal inventory footprint, making it a practical addition to your vehicle's maintenance toolkit.

• Precision-engineered zinc HD axle shims for consistent alignment adjustments
• Adjusts caster positive or negative from 1/2° to 4°, offering flexible tuning options
• Designed for solid axle 2WD and 4WD vehicles, compatible with various makes and models
• Durable zinc coating resists corrosion and environmental wear
• Includes six shims with varying degrees and widths for versatile application
• Easy to install with standard tools, suitable for DIY enthusiasts and professional technicians
• Optimizes steering response, stability, and tire wear for improved driving dynamics
• Twice the coverage with half the inventory, streamlining your repair or upgrade process

Construction & Design

The SPC Shims Kit 89799 features high-strength zinc-coated steel construction, ensuring durability and resistance to corrosion over time. Each shim is precisely manufactured to maintain consistent thickness and taper, allowing for accurate caster adjustments. The design includes tapered edges to facilitate easy installation and removal, reducing installation time and effort. The kit's compact size and comprehensive coverage make it an ideal choice for both professional shops and DIY enthusiasts seeking reliable alignment solutions.

Performance & Benefits

By installing these shims, you can expect improved steering response, enhanced vehicle stability, and more even tire wear. Adjusting caster positively or negatively helps tailor your vehicle's handling to your specific driving needs, whether for off-road adventures, spirited driving, or daily commuting. The zinc coating not only prolongs the lifespan of the shims but also ensures consistent performance in harsh environments. These shims help support your vehicle's suspension geometry, contributing to safer and more predictable handling characteristics.

Installation & Fitment

The SPC Performance Shims Kit 89799 is designed for straightforward installation. The shims are compatible with most solid axle 2WD and 4WD vehicles, and no special modifications are required. Typically, installation involves removing the existing suspension components, placing the shims between the axle and the control arm or steering knuckle, and reassembling. The tapered edges facilitate alignment and positioning. Always follow the specific vehicle manufacturer’s procedures and torque specifications. No cutting, drilling, or tuning is necessary, making this a user-friendly upgrade for both professionals and enthusiasts.

• Simple bolt-on installation with common hand tools
• Adjust caster from 1/2° to 4° for optimal handling
• Suitable for a wide range of makes and models with solid axles

What's Included

• Six zinc-coated steel shims with varying degrees and widths
• Installation instructions and mounting guidelines

Ideal For

• Off-road enthusiasts seeking precise caster adjustments
• Street drivers aiming to improve steering response and stability
• Professional mechanics performing suspension upgrades or repairs
• Restorers restoring proper alignment on classic solid axle vehicles

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all jurisdictions. Please check local regulations before installation.