Help! How to remove the lower arm bushing?

On a side note,

Are the lower control arm bushings size the same for all A-bodies? what about between slant vs v8? are the arm themselves different?

I asked coz the bushing i ordered "seems" a little too small in diameter, although i havent taken out the old bushing/sleeve yet (will do so on friday). But to the naked eye, the bushing looks too small for my '66 dart.

Can someone enlighten me on this? :)