Manual transmission conversion to Automatic Transmission

As mentioned not as easy as it sounds however if you are wanting to seriously check into it take a look at some of the dodge CTD forums such as turbodieselregister.com dieseltruckresource.com or cumminsforum.com. You will find threads about swapping out manuals to automatics with some searching. You will find it easier to swap in a dodge auto than an allison but it can be done.