Mondeo: VA crossbar bushings

I have a Mondeo 11/94 1.6l, 120,000km, in which the crossbar bushings, left and right respectively the rear, are torn. I don’t know how long, since recently found during tyre change. First noises when driving occur now. Urgent question: can one only have the crossbar bushings replaced or should it be the whole crossbar including bushings? If only the bushings are possible: all four or only the two torn? With the request for short-term antwor and Greetings