I couldn’t find any videos showing what to weld in a 2 1/2 ton chunk to make it a posi. So I’m showing you what I did. Hope it helps. Lincoln locker 2.5 ton 2 1/2 ton Military differential
I have sold that truck and got a new one now. But that weld job held up fine. The carrier or axle will break long before that weld. Especially grinding the teeth off of the gears gave PLENTY of surface area for plenty of weld. I’m sure it would hold even if you didn’t do that (IF the welds were good), but doing that just helped in my opinion.