Polyurethane bushings are stronger and last longer than standard rubber bushings. Most modern production vehicles are equipped with rubber bushings, which have a limited lifespan The quality and durability of this product surpasses the original part with a Shore hardness of 90A. For the full vehicle equipment list, please refer to the product description This product is made of the highest grade polyurethane and the hardness of the bushing is matched to the application PSB bushings are designed to be easy to assemble without the need for special tools PSB bushings last longer, require less maintenance, and provide longer tire life