1989 Ford F-150 with the 6-cylinder and a 5-speed manual. Who made the transmission?

1989 Ford F-150 with the 6-cylinder and a 5-speed manual. Who made the transmission?

Ford was using a 5-speed transmission sourced from MAZDA in 1989.

GOOD GAWD - I just realized that I have no idea how I know THAT - LOL!

Yes, the Mazda M5OD-R2. The Skratch cat is right.