I just this minute got my leaf spring bushings changed out and it is a pain,,I kept them sprayed down with pb blaster , on the bigger bushing I drilled around the rubber to help free up the center shaft an drove it out then removed the rubber,,then I took a chisel and peeled the outer sleeve down on the outer edge and took a chisel and drove out the sleeve that has to be removed or with the energy poly bushing it has to be removed,,alittle heat also helped but dont overheat,,the shackle ends are not to bad , and on mine I had to reuse the center sleeve on the shackle side so dont abuse them just take a good punch and drive them out and then remove the old bushing,,and then clean the inner sides good so the new bushings install easier,,took me about 5 to 6 hrs to do the leaf spring bushings but then again I got in no hurry,,and I had my tub off which is a big plus