Mmmmm... I guess that means, I'll be taking it apart again... Also thx for that link! I think this time I'll record it on my phone & post clips as I'm going thru...Here is a link to another IPB, with names for the parts. The item numbers look similar, but they are not the same as the IPB that was posted by BP. BP is a trans expert, so take his advice seriously.
BP, is there any real difference between the "20 pan screw" version and the others; can we ignore that?
PS: I think it is possible for one of those welds to break, have the parts spin freely, and leave no obvious debris in the fluid.