1968-74 Slant 6 head.

cchrishefish said
What pushbutton 904 transmissions will work on my 64 Dart GT slant 6. And, how do I identify different year pushbutton 904's?

Pushbutton trans were all prior to 65 iirc. 67 and earlier have the 1/4" smaller convertor hub but i think the pushbutton trans had a <66 cable shifter instead of the 66 and newer sector shaft type shifter.