Would front strut top mount bearings knock if worn? Trying to diagnose my knocking noise. Have eliminated track rod ends (brand new) and anti roll bar (off the car) so has to be either bottom ball joints or strut mounts. Rattles even going over small bumps. Not a hard knocking more a clattering. Also car is sitting quite low on passenger side but the spring doesnt look to be broken. Could the spring be knocking tho? If the plates it rests on are loose?