Radius Arm Bushing replacement. on 1994 Ford Explorer

How do I replace the Radius Arm Bushings where it meets the cross member?

Asked by for the 1994 Ford Explorer
the mounting bracket for the bushings has bolts and riviet that have to be removed. drill out the rivets and replace with bolts. dont forget to get it aligned when you are done.

What is es
timated cost of repair?