Made a little progress today I think. Using 6 wheel chocks, and a jack stand. I worked the stuck drive wheel back and forth for 30 minutes. Running high idle using the clutch between reverse and first, trying not to roll it off the jack stand, I started getting a little more movement in the reverse direction and at it I finally got it to rotate pretty easy with the engine at low idle with the clutch engaged. If I try and run it forward it jams right up. Felt everything around the drum and hub, and everything was still cool. It will be interesting to see what's going on when I eventually get the drum off?