If anyone is considering a transmission swap I believe this is some good information & at least worth the read......
https://www.hemmings.com/magazine/mus/2006/07/Chrysler-A-518-Overdrive-Transmission/1301453.html
https://www.hemmings.com/magazine/mus/2006/07/Chrysler-A-518-Overdrive-Transmission/1301453.html