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Couldn't that hub be turned down and sleeved?
FWIW, my rear drive leak turned out to be the shim. Apparently the shim had corroded to a point where a slight path had developed to allow gear oil to leak past the paper seals and drip onto the wheel. I realized the shim was my problem the 2nd time I took the drive apart. Anyway, if your shim has the slightest amount of rust on it you may want to consider replacing it too, they were about $10 in 2010. I know you can clean them but the pitting will still be there.Art