there are at least three different versions

my 95 LS are riveted to the sway bar

my father 95 they are bolted and they are again different on the 99

so maybe if you have a early 95 you can't technically change them without changing the bar

but in all reality you could drill it out and bolt new ones on

- 95 Mystique LS - Zetec/5spd - 99 Contour SeVT Sport - Duratec/5spd Official NE-CEG Contour/Mustang Family