Well here's my predicament. I have a 1978 CJ7 with a 304 and an AMC th400 auto trans. I have access to a later 1980s to 85 AMC 360. in my research I am finding that the th400 was not used after 1979. My question or search is to find out can I bolt my th400 behind and 80s 360 by simply getting a th400 torque converter and flywheel or flexplate for a 78 or 79 J10 series vehicle with a 360. I believe they switched to the Chrysler transmissions in 1980 and I do not know if the turbo 400 torque converter will fit into the end of the crank or do I need to add or remove a bushing or sleeve.