lowering the rear 04 S4
 

ok as the title states im trying to lower my S4 i have bilstein pss9 coilovers but my rear coilover ring and threads are spinning toghter and not alone so i can lower the car i have plenty of threads to go down on but its stuck together im wondering if there are any ideas out there instead of taking it apart to lower the car im afraid i hmight have to anyways but im trying to avoid that if possible and thank you in advance.