they're all the same if i recall correctly... the parts guy can tell you if the part #'s differ... don't buy the police interceptor version. get longer shocks then the crown vics... i use 95 mustang rear shocks, perfect mounting points and don't need any extra hardward for the bottom bolt. i picked 95 because i used to own a 95 mustang... anyway, they are about 3inches longer than stock, maybe more.....