When it happened to me, the input shaft was forced into the converter so hard that it stuck itself in there,,
try to turn and wiggle the converter at the same time,, if it comes out(input shaft inside the converter) then take and drill a hole the end of the converter, use a drift to knock out the input shaft, then weld up the converter hole, shouldn't have hurt anything,, but the pump,,,hopefully,,
I also have been told that you can drill a small hole into the input shaft, then use a dent/slide hammer to yank it out, but never tried that one?? are you using a glide?
if so be sure to get a gear set from a v8 car,, the first gear ratio is lower but its also stronger!
hope this helps??? TC