Graphite Impregnated Polyurethane is far superior to rubber for many reasons. Durable and long lasting, SOR’s Graphite Impregnated Polyurethane Bushings withstand harsh environmental punishment without drying and cracking. Impregnated with graphite to remove squeaking, these bushings will increase handling and are available for all Land Cruisers. A total of 24 bushings are required for the entire vehicle. Order specific bushings for the shackles and the leaf springs you are using. Sold each.