I recently added front and rear sway bars to my 71 Cuda. I bought some ebay LCA's(cheap)and cut the mounting brackets off, welded them only mine. They are very easy to locate since they are right next to a large fastener, and butted up to the top of the LCA.

Check out ebay or TENHemi who previously posted. I added an ADDCO front/rear bar to my 74 Duster years ago. All I remember is drilling in the LCA's to mount their supplied bracket. It worked. Good luck!