1965 MMP's Barracuda Hemi swap! The Ever Changing Build
Did you go around your new K member with a welder and weld it up a bit better than factory before sending if off for powdercoating.
I bolted my bare K frame into the car, then went around it with a welder, and beefed up all the seams, boxed in the power steering box brackets better and added a lower skid plate.