hard to say. AOD's are "clunky" into OD as a general rule. What gears does it have (if you know) and what speed does it shift into OD at 0 throttle? I think I have specs based on rear gear ratio and speedometer reading.
Was the vehicle a factory AOD setup or has it been retrofitted? If it's stock, I'd find an online tutorial/how to for adjusting the TV cable. There are at least 3 different ways it can connect to the throttle body/carb, and in any case misadjustment can kill the transmission very quickly. It's not like a traditional "kickdown" cable/rod where you can drive the vehicle without it and it'll only 'kinda shift funky.'