I removed mine with a 6" two arm gear puller. The rears came out fairly easy because the hooks on the puller can grab the sub-frame fairly easy. On the fronts I had to use a large C clamp to span and hold the hooks tight since its hard to get much bite on the subframe. In both cases you will also need a small plate that will fit over the hole in the bushings that the screw on the puller can push against. I used a 1.5" diameter x .25" thick piece I had.
I also heated the subframe a bit to release the rubber. Just warmed it up. Did not damage the paint. Took about an hour.