ok, after the massive response this last week,
I have decided in my "spare time" to drain and remove the cover to take a "look see" at the ring and pinion.
My original post was because my 1st inclination is to rebuild what I have, however, from what I've read, if you've never put one back together the adjustment/shimming can be problematic.... Not one to ever be afraid of a mechanical project I will prob just go for it and take it slow and easy. lol
The junkyard option sounds quick and attractive however I feel I'll be just buying something with unknown mileage and usage, so might as well keep my own....
Since winter is now over in Alaska I have no immediate need for the 4 wheel drive and it's not my only transportation.... so I will be a while in doing this but have decided to take pictures and do a write up as it is always helpful....