Lower control arm question

The 67-72 has the sway bar go out inbetween the K-member and the core support and the LCA tabs are further out toward the wheel. 73-76 has the bar go through the K-member and the tabs are more inboard (to clear the front-hung calipers). Mixing and matching the swaybars and LCA's won't work, 73-up is better (larger wheel bearings, easy to upgrade to 12" factory rotors and calipers, and parts/wheel selection and availability)