When I did it I had to remove the entire control arm in order to push out the original bushing and replace with a Volvo part. Maybe there is a tool that is available that would permit you to leave it in place. As an aside, in retrospect I wish I had explored using polyurethane at that time but if you just replace the one side you don't want to mix. There are lots of posts in the archives on the control arm bushing replacement. One curious note is that at least for the OE part from Volvo, the left and right side parts are different, have different part numbers. The wisdom seems to be to avoid cheap after market parts, there is so much labor involved that it pays to use good parts. While you are at it, do the smaller bushing too. I don't have a hydraulic press so I had to have both pressed out at a machine shop. Others will surely respond with their experiences... and advice. Oh, the other thing that is not obvious is you must torque the bushing with the weight of the car loaded and level on the reassembled control arm, not while up on a jack. There is a small access hole on the underside.
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1988 245A. Past: 1979 245A; 1987 244 M47; 1971 164E