Mike, since you are talking about removing the forward strut arm bushings and not the caster joint alone, you will run into the problem I had. Using the threaded rod & plate rig, the springs bent inward until they were hard up against the inside wall of the wheelhouse. As Steve says, with some force with the appropriate tool might force them back so you can get them back onto the seat on the LCA. I think it is easier on a lift (which Steve would have available) than it is for us guys working from jackstands. You might try forcing blocks of wood between the spring and the wheelhouse before you compress the springs so they will hold their position in line with the seat. I tried just about everything and finally swallowed my pride and went begging. With the KLANN compressor I had the springs in place on both sides within 20 minutes.