Tale of two cross members

67 had a lot of one year only stuff. They prob realized that the tab wasnt needed and only added another step to the manufacturing process so they eliminated it. My 67 had the tab on there when I dissassembled it. Maybe your car had a later model crossmember in there from a previous owner. This stuff being 50+ years old so much has been swapped around over the years. Or I could be wrong and they added that into the manufacturing. I look at the differences between my 67 and my sons 69 barracuda. Similar cars yes, but they did what they could with everything between 67 and 69 to make the car cheaper to produce. For instance my wiper linkages on the 67 use bronse bushings brazed into the linkage arms, felt washers and metal clips. This is an awesome setup that will last forever. My sons 69 uses black nylon plastic bushings that double as a retaining clip to keep the linkages attached. Faster assembly, and cheaper. My 67 coupe has window ledge wide stainless strips. My sons 69 coupe does not. In 69 those trims were relegated to fastbacks only. 69 the fold down rear seat was optional. Question is , why would you buy a fastback back then if not to get the fold down rear seat to take advantage of the cargo room. Other small things like the ignition key bezel trim. Chromed diecast on my 67, cheap plastic on my sons 69. Carmakers all do this. After the first year run of a new model, the beanies get ahold of it and start analyzing it for what $$$$ can be removed to make it cheaper to produce and still sell. I have a complete spare set of the bronse bushed 67 wiper linkages and pivots that will go in my sons car because that is a better design. Clean em up add some aeroshell 22 to the bushings. Good as new. I guess new and improved doesnt apply there.