The idler arms bushings were a little harder. Again, I gleaned some sage advise from the FAQ. My advise:
(1) separate the inner bearing from the outer blue plastic shell.
(2) shave/taper that blue plastic shell edge so that it fits within the opening. Make sure the opening is clean and lubed. Drive those tapered bushings in with a rubber mallet.
(3) Pull the inner bearing in using threaded rod, washers, bolts,