Most have a steel ring molded into the end for added durability, no matter how demanding the driving.
ENERGYs specially formulated polyurethane body and cab mounts are soft enough for a smooth ride, yet rugged enough for the most demanding road and track. Aluminum mounts are too harsh, causing other parts to break! SQ x 7/16 in. Energy Suspension Leaf Spring Pad Set (Black) - 9.H;Set of 8;California Residents: WARNING Stronger than original rubber mounts that are so soft they crack, distort, and crush so badly they often fall off.