
Specifications
- Brand
- SPC Performance
- Part #
- 10663
- UPC
- 082642106630

SPC Performance ZINC SHIMS 3.5x6.25x3.5 deg.
$99.40
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SPC Performance axle shims. Zinc alloy construction offers improved hardness and compression strength for precise alignment.
Key Features
- Verified fitment for heavy-duty truck and tandem trailer axles.
- Zinc Alloy construction provides improved hardness and compression strength over aluminum.
- Dimensions are 3.5 inches wide by 6.25 inches long, with a 3.5-degree angle.
- Includes six shims per box.
- Helps spread load to prevent shim crushing when used with Z Blocks or axle spacers.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
When you need to dial in the alignment on a tandem trailer or heavy-duty truck, these axle shims from SPC Performance are a solid option. They're designed to quickly and accurately adjust the front or rear axles, helping you get everything tracking straight.
These aren't your typical aluminum shims. Made from a Zinc Alloy, they offer a notable step up in hardness, similar to premium manganese bronze, and have much better compression strength than aluminum. This means they hold their shape under load, ensuring your alignment settings stay put. They measure 3.5 inches wide by 6.25 inches long, with a 3.5-degree angle to make those adjustments.
You get six shims in a box, which is usually enough for most tandem axle setups. If you're using Z Blocks or axle spacers, these shims help spread the load to prevent crushing, adding to their durability.
Specifications
- Brand
- SPC Performance
- Manufacturer Part #
- 10663
- UPC
- 082642106630
Frequently Asked Questions
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SPC Performance ZINC SHIMS 3.5x6.25x3.5 deg.

