I just pulled the hubs from my 6400 by heating the screws and they came right out. I used a rubber mallet around the hub a few times and then walked it back and forth to pull off, came right off. I have Huck brakes and the adjusters don't seem to work. Sprayed them with penetrating oil and will try again tomorrow. If they won't work I guess I'll change all 4 wheel cylinders. Too bad they are $70 each.
