SPC Performance ZINC SHIMS 4x6.5x2.0 deg.

SPC Performance is known for making suspension components that help you dial in your alignment. These heavy duty truck axle shims are a fast and accurate way to adjust the front or rear axles on most popular tandem trailers and trucks. They are designed to correct alignment angles when needed, ensuring your axles are pointing straight and true.

Compared to traditional aluminum shims, these new Zinc Alloy shims offer a significant step up in performance. You get the hardness similar to their premium manganese bronze shims, along with much better compression strength than aluminum. This means they hold their shape better under load, providing a more consistent alignment correction over time. Each box contains six shims, each measuring 4 inches wide, 6.5 inches long, and providing a 2.0-degree angle adjustment.

If you're using Z blocks or axle spacers with these shims, it's important to spread the load properly to prevent the shim from crushing. This ensures you get the full benefit of the improved zinc alloy construction.