So it's not possible to take the ringgear and carrier out, switch the carrier for a posi-one (already learned I have to use a different set of bolts) and put it back in where it was?

bearings are just fine and ringgear and pinion look very clean, in excellent condition,actually...
so if i don't switch these for new ones, the general offset would be still the same right?

(what I don't know is... are the bearings an integral part of the carrier?)