Well Yesterday the brown truck droped off my Aussie Locker
Went Wilsonville Mercedes-Benz (my brother inlaw is a mechanic there). and installed it into a third that we had, Third has Yukon 4.88 gears installed. Then pulled out my rear third and put it in. Total time was 1.5 hours from start to finish.
Now I just need to get out and see how it works.