The original carrier is in good shape. It's just the gears and a few bearings that are bad. While I appreciate the offer, I have already given the go-ahead to do the work. Unless you have a Posi-traction unit for a 55T rear end (not very common), It doesn't really matter. It was only a wish that I could have changed to the Posi at the same time. If I ever do find one, I will consider doing the work over again to install it. At this point, a posi is still in the realm of pipe-dream. Probably never going to happen. But I do appreciate the thought.