So the shop had to remove the entire strut with the springs attached and replace the entire fixture. They could not find the proper parts to be able to use the Bilstein shock with the factory top-mounts. They ended up buying a Monroe brand quick-strut which has the strut, top-mount and springs as an all-in-one piece. They removed the Bilstein shocks and factory springs and top-mounts and installed the quick-struts on both sides.