I have the back half of a valiant convertible I got from Waggin. (doing my own convertible too). I have torque boxes on the front and rear of the dart and looking at the valiant that's been cut in half there's a plate that's in the rockers that got to be at least 4 inches tall and 1/8 thick or better running the lenght of the rocker I'll take a picture of it tomorrow and post it if you'd like. I was wondering how the car didn't fold up with all the rust that was in the back half I got. now I know, lots of extra metal in there!