Oil prime

2004LB7

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Dec 15, 2010
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Those look like fatigue cracks due to constant flexing. Id make sure the transmission was seated to the engine correctly and flush. Also no debris or anything stuck between the converter and flex plate or transmission and engine. Just a small amount of continuous flex due to a misalignment can do that
 
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ikeG

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Apr 19, 2011
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Those look like fatigue cracks due to constant flexing. Id make sure the transmission was seated to the engine correctly and flush. Also no debris or anything stuck between the converter and flex plate or transmission and engine. Just a small amount of continuous flex due to a misalignment can do that
I didn't see any issues taking it apart. Not sure what to think

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TheBac

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Apr 19, 2008
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I can remember seeing that on higher-hp trucks in the past, but not stock. Did anything else seem odd when you took it apart again?

EDIT: you answered that earlier.

Must've just been fatigue from use.