[SS427]

Rob,
I use a wooden spacer to keep the two halves from collapsing in on each other. If they do that the bushing will not slide in properly as the bore will be canted. Measure the inside of the control arm and then cut a piece of wood a little smaller (allow room to wrap a rag around it so as to not scratch the arms) and cut the piece of wood in a half round shape to go around the contour of the bushing opening. Then use a large socket or similar tool and a press (if available) and they will press right in. I can do all four sets on control arms in about an hour and it works very well.
Rick