Moog K377 Idler Arm Bushing Bushings are manufactured from high quality elastomer compounds for durability and ride performance. Assembled with the proper precompression to provide the ultimatein performance and feel. High level bonding adhesive is used for durability. Elastomer compounds do not utilize any reground rubber fillers. Use on 1955 - 1957 Chevy vehicles Direct replacement part for steering system Made from quality materials for durability Designed as original equipment replacement for stock vehicles