wow 10 pages of u 2 goin at it....haha....
banned...most diffs tend to loose oil over time....if the diff is 100% empty with only a coating on the gears chance are it leaked out....unless its still the stock factory grease...i duno..but either way....I use BN Orings and BN seals whenever i open up a diff...its not worth it to reassemble to only have it leak a couple runns later....so get urself some extra diff seals and orings.