You really need a shop press and the correct size insert to get the shell out easily. You can do the old fashion burn out the rubber and hack saw the shell, then press in the new bushing.
The new bushing is orientation specific. Rubber casting/injection tits down and the air gap with the 3 ridges inside the shell faces the ball joint.
Or just rockauto some complete arms, usually over 100K the front bushing starts to fail anyway.... and pressing that on anything but a rust free arm usually results in some fun twisting and crunching.