These reinforcement plates will work on all 67-73 cars. They will also work on any later car that upgrades to the early sway bar mounting points. The "through-body" setup has superior geometry and there are a lot of cars that are already upgraded that could install this kit. The stock sway bar mount plates sandwich the inner fender material which is not a heavy gauge to begin with. This reinforcement panel significantly thickens and strengthens this area. People who have installed a larger than stock, or stock front sway bar will benefit from installing this kit. Free shipping in the Cont. US, will ship internationally but buyer will pay all shipping costs, contact me first.