While trying to replace the passenger side CV joint on van I couldn't get it out

What is your question?

I removed it from tranny and then after taking apart everything on wheel hub including the c.v Nut It wouldn't come out no prying twisting hammering would get it more than an 1-4" out 3 grown men couldn't we destroyed the threads to shaft protruding by at least two inches into a mushroom head .I then cut of with metal blade saw all and growned down enough threads with drumel to get but back on put it together and been driving it plz help with any advice on how to get damned thing out