A little progress today

[nu2-72]

Chrome8, yes and no. First, remember that this is a coating. Although it bonds to the metal and becomes part of it, it also coats the surface. That means that any exterior surface will be coated and usually present no problem. However, inside there are bearing tolerances and seal lips and so on. This would make installing those items difficult and change the set up. What you could do is make end caps with an allthread rod from axle opening to opening and another pair from the pinion opening to the cover opening. You would need these sealed tight and one of them would need a vent. See Long Roof's reply. You could drill and tap a hole for a pipe nipple and use black pipe to make a snorkel to stay above the zinc. But a word of warning here. Those caps will become soldered to the housing and the threads will fill as well. You could cut the threads off and punch the rods out but getting the plates off might be a trick. Also the ball joint holes would fill some. They would need to be reamed back to the correct taper and tolerance and the top one is threaded.
So could it be done? Yes. Would I do it or would it be easy? No.