need help

Hi, welcome aboard! I too have a 1966 Valiant. What you have is a A-body, people refer them as "early A-body" cars on this site (66-older). Most a-body parts you need will come from 63-66 a-body dodge and plymouth cars. A-body cars from 67-76 are a lot different! Ebay is a good place to find parts, also www.kramerauto.com has a lot of sheet metal. Try Year One, also Layson's Restorations has a lot of parts but I have heard NOTHING good about there service!! I would look at the for sale posts on this site, also post a wanted ad for parts you need! I have bought and sold stuff here before, very helpful people here! Good luck with your 66 Valiant!!