I got the plug out this weekend with some heat, and failing attempts with a pipe wrench. Digging around in my 3/4 drive socket drawer i found an BUDD wheel socket that fit the plug perfectly, and she came out! As expected it was full of crud so i spent some time cleaning and scraping the water jackets and sucked out lots of debris with the shop vac. I was able to get a clear passage around the back of #6 which i understand to be the problem area, so fingers crossed we are in business.
The pics below show the crud and socket.
The last pic is me showing off my photography skills lol, I moved the front clip out the back to make some room, and with the fall leaves and my dogs colours it looks almost like art.....lol
