The lower control arm only needs the pivot shaft removed from the inner bushing. We used a press and pushed out the pivot shaft from through the torsion-bar socket. A heavy hammer in a vice will probably work as well. The control-arm bushing consists of an inner and outer steel shell with rubber in between. The inner steel shell comes out still attached to the pivot shaft. When using OE-style rubber bushings, remove the shell from the shaft by staking it along its length. We're using poly bushings, so the shell remains in place.