Go to your local library and see if they have a repair database, such as Alldata, Chilton or Mitchell1. Pull the technical data.
Is your CHECK ENGINE light on? If so, checking it on that generation of Chrysler engine management is easy, as it involves cycling the key between LOCK and RUN several times. See if you can find any transmission codes.
My guess is yours has an Aisin-Warner AW4 transmission, which is fairly robust.