We manufacture our own aluminum tailhousing that will replace C4D, C4Z, C6O, and C7O casting numbers and will have the correct shifter locations for:
1964-73 Mustang, Cougar
1966-68 Fairlane, Cyclone, Ranchero, Torino 289, 302, 390
1966-69 Falcon 289, 302
1966-69 Mustang, Cougar 390
1967 up Fairlane, Cyclone 427, 428
1968-69 Mustang 428, 429
This tailhousing will allow you to use your toploader in different model vehicles without having to find a different tailhousing to move the shifter to the right location. Our tailhousing is available in 28 or 31 spline output shaft size. It is made with A356 aluminum heat treated to T6 and weighs only 7 pounds.