please dont drive it how it is
as said bolt out and carefully get the balljoint much further in,look to the other side for guidance on how much protrudes its about8mm i seem to remember
also dont knock 7 bells with a hammer under balljoint to achive this as it damages the cover
be careful undoing the nut and bolt as they shear easily plenty of wire brush and a good dose of fluid is the best action prior to strip
how did you get it like that anyway???????????