we used an air chisel and a press and they came out pretty easy for me, as in 10 minutes..
i guess i just dont see the need to get new arms just cause of bushings, but to each their own.
When I did mine we burned out the bushings then had to cut the metal sleeve then hit it out with punch and hammer. Took time but it worked. Putting the new bushings in with a ball joint press they went in easily