Im changing a 2002 Dakota with a 3.9 auto trans 4wd over to a 5.9 out of a durango its a 2000. I was going to use the engine, trans, and transfer case out of the durango, my question is on switching the wiring over, I have the durango for parts any info on this would help. I know I need the ecm and engine harness but what about the fuse panel inside the truck? Can the engine harness be changed alone.