I’m learning about the K member x brace that is on convertibles from the factory. I’ve learned that my 93 convertible is missing this brace. So I guess this might be why my 93 feels sloppy in the column and cowl area. From the factory, were all these braces the same or did they change from year to year? Did both 4 and 8 cyl cars have them? If there are different ones, which one should I hunt down?