Finally got the darn thing off. Made a deep 46mm socket by buying two standard depth sockets @ Nothern Tool (~$14/ea) cutting one into and welding the bottom to the other. Still needed to loosen the nut with a hammer and chisel per Wolfman's suggestion above (thx by the way). Really appreciate all the helpful comments and ideas. By the way, I now how a 'loaner tool' 46mm deep socket if anybody needs to use it. Previous post is a great idea.
-Andy
-Andy