Depends on 'the bushes'.
I'd start with a BF breaker bar with suitably sized 6-point sockets
Then something to take out the old bushes and press in new ones. This can vary from a nice press (press in, press out), to a hacksaw and blow torch for removal and suitable threaded rod DIY gizmo for installation.
Personally, I recommend buying as many replacement bits with the bushes already pressed in them - eg: rear lower control arm bushes in their mounts, and some of pressed-steel rear suspension links can also be purchased with bushes for not much more than OEM bushes. Check out febest for a non-OEM alternative.
Poly bushes are also a million times easier to install.. if you're happy with their performance.