Bearing housing repair?

If the bore isn't worn too badly, take a center punch and punch lots of dents into the bore all the way around. Go lightly at first but if it's still too loose, punch deeper. Spread the punches out evenly all around the bore. Rather than use a needle sharp point, use a punch that's a little duller so it will displace more material over a wider area. As long as you can get the outer shell of the bearing to fit tightly and not wobble in the bore, the repair should be permanent. It'll take a little time, but if you can save the cases, it'll be time well spent.