Tranny qeustion Plz HELP!!!

Hey guys quick question does anyone know if a tranny from a 89 SC thunderbird will work in a 90 thunderbird. I Know they are both AOD transmissions but dont know if there would be something preventing me from swappin them. PLease let me know if i can do this

Thanks For Your Help In Advance

Ya they will work as long as they have the same block size. (you know 3.8 to 3.8 or 5.0 to 5.0) if it is out of an Sc then you need to be putting it in a 3.8