i need to unbend the lower control arm bracket on my bro 98 cherokee does anyone know how to accompish this

 

Carefully!.... In all seriousness, when you flex steel it stretches and the "restraightening" process can cause stress cracks. Are we refering to the axle bracket or body end? Not to mention that these bracket positions are critical for proper vehicle tracking. I think that personally I'd want to consult with a professional crash repair person for advice before trying to "straighten" suspension stuff.