Put the heat right to the race, not to the surrounding material. By heating the inner part (which is sacraficial at this point) it will try to expand, can't because its inside something bigger & stronger then when it cools it shrinks. Worked on my pick up.

Step two - 1 bar of ivory soap or a glob of grease (soap makes less mess), 1 round thing that will only slip fit inside the race. Fill (full full) the hole inside the pilot, stuff the round thing in the hole, smack it with a hammer. The soap/grease will get behind the race and when pressurized by the shaft trying to get in there too, out pops your race. Only works if the bearing is down a blind hole and the driver is a tight fit to the inside of the race/bearing. Worked on my Nissan. Tough to describe, easy to do.