Correct, the rears are a one-piece hub and bearing assembly. Remove the brake rotor, remove the axle nut, remove 4 bolts in the rear, go to town on it with a big hammer, and out it comes.

Why can’t you just hook the puller behind the outside flange on the hub and pull it off?

Any ideas on this? Thanks.

If you floor it shouldn’t stall, it should just take off.

You can, in theory. Just depends on the vehicle. Sometimes when you unbolt them, they just fall out. Sometimes they need a little persuasion with a big hammer. Sometimes they need fire, cussing, and a sledgehammer. They're not pressed in, just bolted in, but they get corroded in, or the factory uses some sort of locktite-type stuff on them.