All converter shops I've been in, and the one I worked for preferred to not just replace the hub. As a matter of fact, I don't remember our shop ever just replacing the hub. Various reasons why, but the one that I remember most was how difficult it was to get the hub lined straight when the converter pump side was still attached to the front(engine side), so to do the job properly, it would be cut in two, and the cost to just replace the hub wasn't that far off of having either a replacement converter, or in the case of a performance converter have it gone through and put it back as new.
