Thanks for the info. I changed both diffs yesterday at 10,500miles.
The front D30 oil was rather milky and you could see metal particles in the oil (very very fine dust like particle I assume from break-in).
The rear D44 oil was very dark, again with metal dust size particles. The suprising thing was the amount of junk on the drain plug manginet...about a 1/4 inch of stuff (is this normal?).
So, two lessons learned by the nubie:
1) The D44 Diff oil is easier to change than the engine oil because of the drain plug (wish the D30 had one)
2) There is junk in there after only 10K miles.
Now that I've done this, how big of a difference does this really make? General maintenance is good, but what if you never changed your diff oil, or only changed it every 50K miles? Those of you with more experiece have any insight or stories?
2.5"Tera, 34"Maxxis, Front Stubby, Cobra75, Flapless Seatbelts & Grounded Floormats