I just wrapped up a front end rebuild about a month ago, king pins, bushings, shackle work and leaf spring pivot end bushing/bolt replacement too.
My trick to get the shackle plates off was to take a tapered punch, I had one about 8" long total, take the tapered end and insert between the inside face of the shackle plate and the frame. I'm talking about the upper end of the shackle plate. With a taper about 3/4 inch diameter or so wedged in there, you can whack the end pretty good, after a half dozen smacks mine came apart and it didn't scar anything up too bad. This method worked pretty good for me, good luck.
Last edited by Moonlight; 06/30/2015 8:23 PM.