These suspension bushings replace distorted and worn-out original rubber mounts to maintain truck cab to bed alignment. Original rubber mounts are so soft they often crack, distort, and crush so badly they often fall off! And aluminum body
mounts are too harsh for street use that they tend to break and cause other components to break! These polyurethane cab mounts combine the best qualities of both:
they're soft enough for a smooth ride, yet rugged enough for the most demanding road or track.