Here's another way to pull big stumps. I first went around with the backhoe and broke the roots off as close to the stump as I could. Then, I hooked up my well-ballasted Farmall A with 100' of 5/16" cable with 5 snatch blocks, effectively giving me 6 times the pull. One end attached to the Farmall, 3 pulleys on the "victim" stump, 2 pulleys and the other end attached to the anchor stump. I used a 3/4" chain on the stump being pulled to attach the pulleys to, and multiple 3/8" chains (because that's what I have) on the anchor stump. The Farmall still worked pretty hard getting it out. Once the stump was tipped up on its side, I used the backhoe to scrape off the ball of clay that came with it.
Mike