Not through any mechanical knowledge but from what I’ve seen and read people like to do a “belt and braces fix” and I’m not sure it needs it.As from what I’ve seen the problem seems to start with flex at the diff hanger and confined to a small area and progresses from there cutting out that flex would save the spot welds and the resultant tearing .its not that this is a problem on every car and many live their lives without a fix .You May say it transfers the problem to somewhere else on the chassis but that would be ok
