[85lebaront2]

I am looking for the external transaxle cooler that the 2.6L Mitsubishi engines used and was also optional on 2.2L models. This would be for a 1983-85 K body.

 

[ImperialCrown]

You can see the Mopar air or water cooled transaxle coolers and attaching hoses in figure 7-1625 here:
http://oskin.ru/pub/chrysler-dodge/manuals/Chrysler_Service_Parts_Catalog/CD2/82-96PassCar/85p.PDF
Use the Mopar part #'s to Google around and check NOS vendors. If you don't have any success, then I would save time and install a 'generic' ATF cooler that any auto parts store would have in stock.

 

[85lebaront2]

I found one on a Dakota with the 4.7L V8, it mounted vertically and does not connect to the radiator at all.