Up for bid is this NOS transmission vacuum modulator diaphragm Ford part #D9AZ-7A-377-A. This piece fits 1979 Granada, Fairmont, Zephyr and 1981 Mustang and Capri models with 4.2L & C-4 trans. This is the blue stripe type and it has a great finish. Original box is included. I just purchased a huge Ford dealer inventory from the 70's to the 2000's so continue checking my other NOS Ford parts.