hey fellas, i spent some of today trying to get my filler plug out of my Tcase. It looked like this
there is grinder cut marks all the way around it from the previous owner
this is how it eventually came off
and $7 is the answer, a big 23mm socket goes over it, heaps of meat for the socket to stick to, more to weld to if it ever seizes again
Only issue is it fit's everywhere except the filler on the gear box. could be worse.