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Prothane Rear Leaf Spring Bushings for 1999-2006 Chevrolet Silverado 1500 2500 Rear Leaf Spring Bushings (7-1055-BL) by Prothane®. Quantity: 6 per Pack. The original rubber bushing or mount was fairly soft which helped to dampen noise and vibration that is generated by the tires and road surface. Increasing the hardness of the bushing either with harder rubber, urethane or even bronze, will allow more transmission of noise and vibrations. Formulate the hardness and design to reduce this effect as much as possible. A softer urethane bushing allows the vehicle to perform better without the harshness, even over rubber components of the same hardness. So, the real change in ride quality is increased.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.