I recently bought a truck from a complete moron who lived ON daytona beach. I grew up in MN and never seen this much corosion on electrical components in my life. With that being said I have replace almost everything electrical, dash, OD switch, multiple pigtails and the fusebox under the hood. I have a good shift from 1-2-3 and no attempt to 4 or OD. I replaced the pressure transducer, pressure sensor and the OD and lock-up solenoids. I put new pigtail on tranny, speed sensor, and new coolant temp sensors (both of them) I've seen where some threads say something about a trans fuse but I have not seen anything but a trans relay(new). This is a 97 ram 1500 laramie 5.9 4x4 with a 98 engine. The tranny pan and filter were very clean with just a little dust on the magnet. I've trace wires and just want to know where else I may look since it don't even try to shift into 4 or OD. And the light on the dash works when you push the button but no rpm change or attempt. Any help would be great. Thanks!