Yes, the AOD does not have an electrical OD lockout, but the AODE and 4R70’s type do. I found out, my shifter, which is from my 87, has P R N OD D 1. If i put it in D, it will only do 1-2-3. If i use OD, it will do 1-2-3-OD. When I've driven the car in town, it moves to OD more than I would...