Here are the numbers off what I have. I think the 71 will be the one you would want. It has the part throttle kickdown like we talked about. Sorry I forgot about it. My forgetter works over time these days.
2801533Y 2712881 Has converter. Earlier than 1969.
3515804A3400 6200 No converter. 1971 transmission.
PK2892076A 2756 061 Has converter. 1969 transmission.
