Yeah, there should be 6 threaded holes to mount the reinforcement x-brace. If those aren’t there you my be SOL. Not sure how critical that is. Mine was gone when I got the car but I added it back. Makes running the exhaust more difficult. I always wondered if that was something that was added to stiffen up the body in a crash.
So it appears that when the floor pan was replaced, they did not install the rear set of floor supports, which is where the back 4 bolts of the cross brace bolt in. See pictures of my car vs. the picture of what it should look like.
Any thoughts on if/where those rear floor supports might be available?
I'm going to put subframe connectors on the car anyway. Do you think the subframe connectors with some cross-bracing between them would provide the necessary support. I'm not too excited about welding in the proper floor supports, even if I could find them, due to the fresh paint on the bottom of the car, but will do it if not having them is going to create a long term issue.