Made of precision CNC'd Delrin
which makes them much stiffer than a normal medium-durometer mount
Replaces BMW part numbers(s): 22111092895
So we designed the original polyurethane F30
Rear Shock Mounts Aluminum, Spherical (Race) - E30, E36, E46, Z3, Z4 Camber / Toe Made of precision CNC'd DelrinThese aluminum BMW E30, E36, E46, Z3, Z4 rear shock mounts with spherical bearings are true, racing rear shock mounts that eliminate the deflection that occurs with the factory shock mounts. The stock rubber upper shock mounts deflect under load negatively affecting the rear shock damping, especially with a modified suspension and increased shock valving. Upgrading your stock rear shock mounts to our BMW E30, E36, E46, Z3, Z4 aluminum rear shock