The threads broke. It was an American made one from 440 source. I banged the pan on the rolling jack when I backed it off the lift but there was no external damage to the pan. I managed to get the broken part out with an EZ out screw extractor without damage to the thread.
I just placed an order with Mancini for a new Mopar performance 6 qt pan and pickup. The volume is 1 quart less that what I have but I will not be racing autocross, just some test and tunes. 2 week back order Yet I will have almost 2 more inches of ground clearance.