HELP! transmission case repair?

Today I went to to install the fittings for the transmission lines in my freshly rebuilt A500 (RH42). As I tightened up the fitting the part of the case that is threaded for the fitting broke apart. Is there anything that can be done to repair this or do I just have to find a whole new case and have the internals swapped?

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I would try JB weld metal epoxy & teflon tape on the fitting it might be worth a shot