Project vehicle is a 1994, 3500 with a dead 6.5 but a good 4l80e. I have a donor truck 1996, 3500 with 7.4.. I will be putting the 7.4 were the diesel was sitting using the old 4l80e from the diesel. I have all the wiring from the 7.4. What is the best path for wiring it in so the dash works...