Replacement parts for classic cars such as a Ford Thunderbird can be found at Napa dealers nationwide, and online at websites such as eBay and Auto Parts Obsolete. Other sources for classic car parts include auto scrap yards, classic-car clubs and swap meets.
Napa dealers carry a wide range of classic auto parts, available through its retail stores and official website, Napa Online. The website offers a search function by car manufacturer, year and model. EBay offers both auctions and online stores that sell classic auto parts. Auto Parts Obsolete provides a search function by make, model and year for the classic auto parts it stocks.