As the rubber bushings wear, they begin to compact and distort, introducing play into the suspension components. This play exaggerates a number of conditions, such as unresponsive steering, vehicle lean, wheel hop, and front-end misalignment. When you add oversized tires and increased suspension travel, it soon becomes apparent that a weakness exists in the chain. Anyone with an understanding of mechanics knows it's a rare machine that doesn't need all of the parts in its makeup to run at peak efficiency. This holds true for the chassis as well.
Polyurethane works by maintaining firm control over the suspension unit it adjoins.
In many instances, the rubber-bushed suspension component will only begin its function once the rubber's displacement is halted by supporting metal. When rubber bushings are distorted and smashed, they allow contaminants to occupy the areas they used to. Contamination of this kind guarantees a speedy demise to any suspension component. With the incredible popularity polyurethane is enjoying today in the automotive market, it's important to know what you're buying. Many people think that color is the only difference in polyurethane.