Yes they are the same tranny meaning:
They are all the same bolt patter
They all have 2 bolt starter
They all have some form of TV linkage (differeant brakets and different levers)
They all are the same gear ratio
2 different tail shafts with 6 differnet bushings styles
2 different length output shaft versions
2 different output shaft gear ratios for speedo
MANY different clutch stacks
control for each year
Improved lubrication through the years
Different OD servo given application.
Off hand I would say the BEST AOD is the ones out of the F150's and the SC's hands down. Often Mustang stuff is good too, but small servo.