Aluminum body mounts are too harsh for street use and tend to break, causing damage to other parts. Original rubber mounts are so soft they crack, distort, crush, and often fall off. Energy Suspension’s specially formulated polyurethane body mount sets combine the best qualities of both; they’re soft enough for a smooth ride, yet rugged enough for the most demanding road or track. Most have a steel ring molded into the end for added durability.