General Suspenison Question

Alright, so I recently rebuilt the steering with new tie rod ends, pitman, idler, upper and lower ball joints. The bushings on my strut bar are cracked pretty badly but I'm wondering if they need to be replaced and if not what will happen? I went to autozone and they don't carry torsion bar or strut bar bushings and I don't know where to get them. Is it worth the trouble just for a mild engined street car or will it be a noticeable difference?