Usually when I order parts for my C5 such as the gasket or the filter I use "1982 ford mustang with 302 and C5" I tried that today at the parts house and they don't have a vacuum modulator for my transmission!
They have two options for me though. One is a 1974 mustang 302ci with C4 (yellow stripe) and the other is a 1982 mustang 255ci with C4 (green stripe). They are a bit physically different from each other but both would fit my transmission, so which do I get? What is the difference in either one?
