Order Alignment Shim Assortment & Alignment Shim Calculator. Shop Alignment Shims Napa. Find wheel Alignment Shims Near Me. Buy Wheel Alignment Shims In Canada. Maintaining optimal wheel alignment is crucial for vehicle safety and tire longevity, and Alignment Shims play a pivotal role in this process. To ensure your ride remains smooth, check for uneven tire wear or pulling to one side?hallmark signs that your shims may require replacement. When selecting new shims, consider the material durability, such as corrosion-resistant metals, and the specific type that matches your car's make and model, be it camber, caster, or toe shims. High-quality shims not only enhance driving performance but also help in achieving precise alignment during installation, making them a smart investment for any discerning online shopper looking to improve their vehicle's handling.