Welded differentials.....who is willing to admit that they have done it?

Yup. With full disclosure and disclaimer. Did it on a Dana 60 in a 4x4 Chevy truck with 44s. I never "heard" that it broke. But we told the guy not to bring it back if it did. lol It was what he wanted and was willing to pay for. So he got it. That sumbitch was one mass of weld in the carrier when I was done, too. It was purdy.