If your Peterbilt 589 is equipped with Lincoln Chrome dummy stacks, you've probably noticed they can have a significant amount of side-to-side movement once installed. Over time, that movement can place unnecessary stress on the mounting brackets, increasing the risk of fatigue, cracking, and premature failure.

Our Heavy-Duty Support Brackets are precision-built from heavy-gauge 304 stainless steel and engineered specifically for the Peterbilt 589. Designed to reinforce the existing Lincoln Chrome exhaust frame brackets, these supports dramatically increase rigidity, reducing excessive stack movement and vibration.

The result is a stronger, more stable mounting system that helps extend the life of your brackets, minimizes metal fatigue, and gives your dummy stacks the solid, secure fit they should have from the start.

Built from premium 304 stainless steel, proudly engineered by SemiCasual, and designed to deliver the strength and durability your Peterbilt deserves.