After extensive development and testing of materials that would offer strength and durability, geometry retention and memory without the harshness, WHITELINE has created a progressive, long-chain Synthetic Elastomer that delivers the combined physical advantages of solid bushings, with the extreme flexibility characteristics of rubber. These Low compliance synthetic elastomer inserts fill the voids of the OE bushing which reduces initial torque loss & movement through rear differential mounts during acceleration & deceleration.

Positive diff retention - inserts only