It's important that your timing chain is running correctly, otherwise you could risk damaging your Mustang's engine. This Timing Chain is a direct-fit replacement that came on your Mustang from the factory.
1975 Ford Thunderbird Parts - Timing Gear
Classic Industries offers a wide selection of Timing Components for your 1975 Ford Thunderbird. Classic Industries offers 1975 Ford Thunderbird Timing Chain, 1975 Ford Thunderbird Timing Conversion, 1975 Ford Thunderbird Timing Cover, 1975 Ford Thunderbird Timing Gear, 1975 Ford Thunderbird Timing Sets, and 1975 Ford Thunderbird Timing Tabs.