Transfer case leak repair?

[Heartbeat Hauler]

There is a fix for this problem. GM likely is not aware of it yet though

If the case runs with low/no fluid for any lenght of time, its all done. It dont take long for it to self destruct inside. When tearing it down to replace case half, it needs to be carefully inspected to be sure its repaired properly.

I've got just over 40K on my '01 4x4 3500 so what's the fix? And, is this fix gonna hurt.........cash wise?
JP