65-66 Folmula S barracuda LCA w/Sway tab?????

I think you need the correct early LCAs, without tabs. The tab is just a bar of metal with a hole in it -- any shop could fab it up, or you could cut them off these LCAs. You just need to confirm the location by installing the LCA in the car with the sway bar and end links. I'm surprised your sway bar kit didn't come with an LCA bracket.