Securely attaches rear shock absorber to top mount Paired with Upper Top mount 171-512-335 Durable material for enhanced shock absorption and stability Sold individually; 2 required per car This rear shock absorber top mount lower bush is designed to provide a secure connection between the shock absorber and the top mount, ensuring proper alignment and stability. Made from durable materials, it absorbs impacts and vibrations, contributing to a smoother ride. Sold individually, two bushings are required per car for complete replacement. This high-quality part restores your suspension system's performance, improving handling and comfort while reducing wear on other components. .