https://allamericanmotorshub.com/product/ford-aod-transmission/ Ford produced the AOD transmission, a robust overdrive automatic transmission, for a variety of uses between 1980 and 1993. During a time when fuel prices were on the rise, Ford produced the first 4-speed automatic with overdrive to increase highway performance and gas consumption. The AOD provided increased economy and smoother driving at high speeds because to its sturdy design and lock-up torque converter technology. Because of its widespread availability and shown performance, it is still a highly regarded option for restoration projects and was utilized extensively in vehicles such as the Mustang, Thunderbird, Lincoln Town Car, and F-150.