Are you not able to get the bolt out? That is a problem many people have, including myself, when removing old worn original bushings. I actually had to take a grinder and cut them out and get new bolts. Once you get the control arms out, simply cut the bushing out with a grinder close to each edge the control arm. Make notches in the outer metal sleeve and take a hammer and chisel and knock the pieces out. It's a chore. You can aso take the arms to the tire shop and have them do it pretty cheap. And air chisel works very well and you should be able to knock the edges of the bushing off the control arm. They can also press the new bushings in. I think I had mine done for a 12 pack of Busch Lite, a can of salsa, and a bag of Doritos!!!