Cozsum...Chev235 link is exactly how I made mine. The rear bushings, (shackles), pretty much pressed right in. Not to say you aren't going to have to use some muscle on any of them. The bushings on the front, (pins), for some reason took a little longer to get started but then again once they got going, muscle on my boxed in wrench pushed them through
At first I tried the hacksaw method...I bet I worked with that at least a couple of hours trying to accomplish the above. I had all four on the shackles replaced and new shackles installed in an hour and a half.