make sure you do your homework on the harness and computer before you jump in. i had every intention of doing a hemi t56 swap in my duster but the elctronics side of the swap was a deal killer for me.
what sort of problems were you looking at? the factory ram computer will run the motor even if the trans is unplugged. you will just get a check engine light that will turn on. because it does not see the trans. it has been done in the rams in the past with guys that ran stand alone trans controls. the factory computer and electronics will not be around long its going to be a temperary thing until i can pull in after market fuel injection or run a carb.