You mean the bushes where the shocks bolt to the frame?
A socket of the right size, and a bolt, nut and couple of sturdy washers to draw it out into the socket. You could also use a vice to draw it into the socket by pressing a bit of bar, rod (or another socket) slightly larger than the metal part of the bush to push it out. Does that make sense?
You might be able to get bushes of the right size locally from a motor factors.
Cheers,
Iain