Stuburn Differential Drain Plug

[lance leblanc]

My lower plug is stipped out. (3/8" ratchet turns inside the plug).
Looking for suggestions to remove it.

I tried gripping it with a pipe wrench but not enough of the plug is exposed to grab securely.

1. Welding a bolt on seems like the easiest fix but I don't have a 220 welder and believe my weld will not hold.

2. Drilling out - but concern for shavings in the rears.