Do you have a shot like this one, but from underneath? Before and after the installed cross member would be cool.
I have a ti on the lift right now that I'm taking apart and experimenting on. Figure I'd hack this one before I hack in to mine. Looks like I might have to take some of the floor up after all, but I'm really trying not to. I want to keep it as stock as possible, and not doing a roll cage (yet?).
EDIT:
Dude.. After looking at your pictures, and then at this junk ti, I had an idea! Thanks for documenting this so well. I'm going to add the 3/16" 2"x4" like you did, but keep the floor. Cut small slots in the floor, and weld the plate that I already added, to this 2x4 with flat stock to tie it all together. Should be strong enough to handle 700whp, and maintain my stock ti floor, with minimal cutting. Thanks!