Wait don't weld it just yet, I think since more people are doing this i should do a tech write up on the subject. I have welded many diffs and as a professional welder i have found there is a wrong and right way to do it if you want it to last. 7018 is not what you want to use by the way thats how i welded the first one and it failed after a few runs. I've got it down to a science and I'll grab another diff and weld it up as a tutorial for you guys.

1999 Montero SAS'd on Kings and stuff

1998 Montero trying to get a V8 Swapped