Hello from Central CT. I recently bought a used 2004 Silver Titan 5.6 LE 4x4 v8 Endurance 340. It has 90 k miles on it. It had a complete Front differential unit replaced at 75k miles. The front is starting to hum pretty bad and I'm worried. I took it to a local guy and he's not positive what's going on. So, it's time for me to do some digging. I'll put a post in the appropriate thread and I'll edit a link to that post later.