I just went out and looked at a closed and an early open drive line rear ends. On both the backing plate is riveted to the housing so different from yours. When you get the axle out of them you are done except for the seal & bearing. Do the backing plate bolts go through the back of the "flange you are trying to remove? If they do and the bolts are out try to carefully work a screwdriver between the piece and the backing plate it is just stuck. If what you are trying to remove is in the axle bore itself then it is the seal or the bearing and you may need a puller.


"I wonder if God created man because he was disappointed in the monkey?" Mark Twain