Greatings all...here is the situation...I changed my 78 from the 2.8 v6 over to a 302 V8...my car had factory AC, but we had to take it out since the condensor wouldn't fit along with the new 3 core (part 514) radiator. Well here is the question...Anyone know a company or a distrubitor who has part # D5ZZ19712B That is a v8 mustang II condensor. I have been told that 4-6-8 are different. I have seen some on ebay, but but stated were not sure they hold pressure....THANKS!!