SPC Performance Steel Shim 4X6.5X0.5 - Pack of set

SPC Performance is known for making parts that help you dial in your suspension, and these steel shims are a prime example. If you're working on a truck that sees heavy use, like a cement or garbage truck, or even an Over-The-Road rig, these shims are designed to help you precisely adjust your caster and pinion angles by 0.5 degrees. They're built for those rigorous applications where every bit of alignment matters.

These shims are made from a high-strength steel alloy, giving them solid compression strength to handle the loads these vehicles put on them. They're specifically designed to fit 4-inch wide leaf springs and have a pad length of 6.5 inches. When you order this part number, you're getting a box of six shims, which is often what you'll need to make adjustments on both sides of an axle. Just be sure to know your spring pad length and width when you order to ensure you get the right setup.