I just got an AOD from an '88 5.0L mercury cougar to put in my 66 mustang. I thought it was just the same as every other AOD but i just noticed the transmission pan is almost perfectly rectangle and on it is says "Automatic Overdrive Metric". I looked in my ford racing catalog and on their shift kit for the AOD the pan gasket looks nothing like the shape of my pan. I've never heard of an AOD metric. Has anybody ever heard of these? Are they the same as an AOD?? I was hoping to put in a shift kit, and a manual/automatic valve body. Is this still possible? Any help is appreciated.