Thanks to Treblig and Mopartoya I'm in the middle of my own 2004R conversion. Here are some pics of the reinforcement plates welded between the cross member and the floor, and the plate I fabbed to close the cut in the cross member. I may have to do some tweaking once we're ready to fit the trans so I won't weld it until we're sure of the fitment. I cut my cross member on the front and back side because I'm using the Wilcap adapter, which is a bit thicker than the TCI piece and will put the trans a bit farther back. Just showing another way to do this great project that the first 2 guys documented so well on this site.
View attachment 1715110121
View attachment 1715110122
View attachment 1715110123