The original factory auto manufacturers are slowly coming around - polyurethane is finally being used for leaf spring bushings.

For high-performance applications, the combination of heavy duty or performance leaf springs and Hyper-Flex performance polyurethane spring bushings deliver the maximum benefit. For lighter-duty leaf springs they add a higher degree of performance and durability. In either situation, you will immediately feel the difference in positive handling and control!

Many sets come complete with heavy-duty metal sleeves to add to the durability of the set. When applicable, many sets contain Energy's own pre-lube lubricant for smooth operation of the bushings.