I did my Vw caddy by just using a long threaded bar, nuts washers and then a socket over the end of the hole, as you wind the nuts it pulls the bush in to the socket and out of the leaf. You the. Reverse on other side to put the new one in.
Should be able to undo one end at a time but do yourself a favour and soak it all in wd40 the day before to make sure the bolts all come out easy. I have seen people set fire to old bushes to get them out