I have recently come into possession of a 1980 AOD out of a Crown Vic and was planing on putting it in my '72 Custom 500, I'm already in the middle of rebuilding the engine, hoping for around 275-300 hp it's a pretty light street build. I was planning on doing some work on the AOD just wanted to see if there was anyone with some advice that has done this before. The Old trans that was in the car was an FMX if anyone wants to know. I've heard there are "problems" with the early AOD trans I don't really know what these are though, all I've heard is that they have problems. I was already going to switch to floor shift so linkage is not a problem. Also on the tail shaft I saw a plug for something, I don't know what it is or if it is important or what I should do with it. If anyone wants more info on the trans or pics just ask.