Easier than expected!
1/4" threaded rod, had to grind it down a little then notch with a hand file. I used a hacksaw to get a little reverse bite on the edge.
Used a tiny allen wrench to put in the bearing inner race behind the puller rod, to keep it snug.
I also used a little MAP gas (only 4-5 seconds). Used a socket to knock it out.
One more to go, hope to get to it tomorrow: