Well, there is 2 different 12350331AN files on the site, one is described to be for a 2500 truck and the other is for a 3500 truck. My trucks a 3500 truck so I decided to flash that 12350331AN for a 3500 into my truck. Truck ran fine with it so I decided to run that as my base file. I know its not the exact file but I figured I would give it a try. I am not saying that it will work for you but it worked for me. But if anybody has the file 12351331AM or AN please share it bellow. hope that helps you out a bit.
Hello Turk88:
Good to see that it worked OK. I have been told that 12350331AN and 12351331AN when compared show as being the same. I am still not 100% convinced of that thou because I do not know all the other parameters that are NOT part of the compare, IE: transmission functions, gearing compensations, etc. If all were truely the same, I would think Dodge would NOT have assigned a differant part number for the 3500 4x4. When you're gonna mess with the ECM in a $65k truck and kill all warranty in the process, you want to be certain about the whole process. I will see if I can get the file from Techauthority, if I cannot obtain it anywhere else.
TNX for the reply and the info given
crdth