Torque Converter

fishy68 said

It'd wipe the trans. but doubt it'd affect the converter. Let us know when you find out exactly what cracked on the converter. If it cracked the neck twice in that short of time there's a serious misalignment like the others said. And if it's that far out of alignment I'd think it'd take out the front pump bushing. Ask the shop if they checked it after the 1st converter cracked. If they didn't that may be the reason the second converter cracked

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Yep

I'd be willing to bet that the pump bushing walked out on the first converter because it wasn't staked in.
Then it wasn't checked and did it to the second converter.
Usually when a bushing walks out it comes out the front pushing the seal lip away from the neck of the converter causing a huge leak.
If it breaks the converter then people tend to think it was just a bad weld on the converter and may not check the pump.
People that really know what they are doing would check it, but we see how that goes on almoat a daily basis these days.

If it's the same engine, same flex plate and the same trans, and also the same pump what else is there to cause it?
(Pump bushing)

I really only mention the pump because it is possible for parts to get machined off center.