Green Wheel bearing help

Well I thought I would go just pop off the drums and take a look. That has turned out to be much easier said than done. The drums, both sides are free enough to wiggle around and slide in and out 1/8 inch or so but neither will come off. I have hit around on the edge of the face with a mallet but that hasn't done anything. Then I decided to loosen up on the adjusters, but I found that there is a steel plug/plate covering the adjuster hole from the inside. I have tried using a rather large screwdriver and the mallet to see if it would pop out. This also did not work, I did not unleash a full swing with the BFH on it for fear of damaging something. I also dressed the edge of the axle where it comes through the drum just to ensure that there was not a rough edge holding it on. Ideas please.

Bobby

just making sure. is your parking break on?

edit: I should read the whole form pre commenting