You just hit one of the few snags in working on a 3.0. No easy way to pull the crank pulley. I get most loose with a combination of Knok'r'Loose, PB Blaster, gentle prying (beware the oil seal lip on the oil pump!), and hammer shock blows to the loosened crank bolt. The timing belt crank sprocket is worse. I usually have to drill and split them off and buy new. Antiseize is your friend, in liberal quantities. Getting the pulley holes lined up to reinstall the front mounting bolts on the ps pump pulley is also often fun, especially since the pulley rotates a tad and they misalign as you pry the belt tight. I leave the socket on the outer bolt as I make the pry to hold alignment.

Check the timing belt timing several times, hand rotating the engine several revolutions. It is VERY easy to get off one tooth between cams and crank, since one crank tooth is only one half cam tooth distance, and the crank sprocket has a fat notch to match a skinny mark, AND the cam sprocket punches are over a belt width forward of the mating marks on the head side and have to be viewed dead on to accurately align the cams.