Aaron Bishop does this. I saw his and from what I saw and what he told me I like it. He takes a big hunk off the bottom. Turns down the ring gear, welds a inch thick piece back on the bottom with a grove for the ring gear to run. IIRC gives you about 2.5-3" more clearance. Not sure of his contact info though, he did used to be on this board. His shop is between Boone and Mnt City on 421.