Stump Removal with a John Deere 450C Dozer

My dad had a tree removed from his yard last summer. This stump remained, so he wanted to get it removed so he could re-grade his yard for better drainage.\r
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Tools were a JD Backhoe, and our 450C Dozer. That stump was at least 3 in diameter, and over 6 from top to the bottom of the root ball. \r
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And freakin heavy.