By the Faq's I seem to have at least a 44. Will now need to look much closer and see if the tag is still there. Know the rear is missing.
i think you mean axles, the diffs would be locked/open, or by brand (stock, arb, ox, eaton, auburn, etc)
i have D30/D35
most guys here would run an 8.8 or D44 in the rear and the D30 up front