Managed to change one bush today!
I have got the trailing arms off for refurbishment, They are getting a bit rusty so I'm going to re-paint them as well as change the bushes.
I managed to replace one of the bushes today, the smaller of the two. The tool I started this thread about worked really well to push the new bush in, it didn't take a huge effort, as Vin reported in his thread.
But getting the old one out took me ages!
The problem with this tool is that it is not big enough to accept a long enough receiver, the trailing arm AND the necessary socket or whatever to push the old one out. So, as others have done, I had to resort to the drill, hacksaw, cold chisel and lump hammer.
I will probably drop the arms into my local garage now and ask them to press the old bushes out.
I'm going to do the anti roll bar bushes as well and the tool should be fine for those as they are so much smaller; I will be able to get receiver, roll bar and "pusher" in OK.
Red Spider S4 LHD manual 1990
Red Spider S4 LHD automatic 1991