So I'm working on the frame connectors and actually getting close. As I said, I don't know if these didn't fit due to my after market pans or what but it was a lot of grinding! The first few here show we didn't have a very good fit out of the box.
So I just kept marking the high spots and grinding them off 'till I could say they were weldable.
Then I took a straight edge down the stock frame rail and transferred it to the connector to get a smoother line. I sectioned it out and tacked it for welding.