Torque converter crack

76 transmission.
All original
Original converter

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This looks like a leak. Not bad that I know of.
The converter seal is new-

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this is cracked-looks like part of the seal in there

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this is the other side -

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just a closer shot

I’ve got to get this back in no matter what. I’m just trying to get a sense of what I’m looking at as far as what caused this and the time frame to total failure.
I don’t drive the car that much. But I need to understand the severity of the damage and what it could possibly lead to. Looks like it might be trashing the new seal as well. When I put the new seal in it was about ten years ago. I just don’t drive the car much. Seal probably has 800 miles on it. The torque converter didn’t look like that last time I saw it. Something must have worn out in the mean time.
I wasn’t even going to pull the converter but I figured why not.

The bushing might be shot and it’s sitting on the pump. How long does it have and can it be patched? Is what I want to know. If I can get another 3000 out of it, that would be nice

I’m not in a position right now to build a transmission and I’ve thought about 4 speeds anyway. Not bad luck....just an old car
All original?
Looks like small snout convertor wobbled in a large convertor register too hard, was the flex plate trashed?