Ok have a 2003 6spd HO 4x4. had for a little over a year bought new, and has a little over 40000 miles on it. Started to notice a noise and wasnt sure what the heck it was. Checked the truck front to back no sign of anything unusual. Transfer case was a tad low everything else was good to go. drove the truck around now there is no noise until you hit about 45 once you hit 45 it starts , no matter what gear you are in tried out of gear , T case in Neutral and once you hit 45 that noise is there no matter what clutch in out no difference. Noise got a little louder so I took a friend with me he was stumped. You could almost feel somthing out of wack not really a vibration but just an unusual feel . Buddy opened up back sliding window and stuck his head out and said damn that sounds like metal on metal. . Took the truck into the dealer and took them for a drive. Stumped to and they guessed it must be somthing in the transmission. Although never had any problem with shifting at all. They had it for a day and a half called and said it was 5th gear they had had a problem with a truck and 5th was banging into 6th inside the transmission. Ok no problem. Well didnt hear from them for a cpl of days so I stopped in. . Truck is in pieces and told hey its your clutch. I was like ok damn what did it do come apart. went over and yea the clutch didnt look new but was completely intact no unusal wear , although was just about to the rivets and they said I had a cpl of heat spots on my pressure plate and the throughout bearing was dry. Ok so you think this is the problem? why? well your clutch is worn down. Now this isnt my first truck let me tell you I have seen some torn up clutches and throughout bearings that never made a noise like this. and for 40000 miles seems quick for a clutch to go. anyhow I asked why they thought that was the problem and he said in there opinion that was the noise and it needed to be replaced anyhow. I disagreed and asked so your going to make me buy the clutch and all ? Yes well I dont think that is the noise , and they for some reason think it is. So I asked if you put this back together and that noise is still there what?? well I am still going to have to pay for the clutch but they will work somthing out with me on the labor. BS I say. . why dont you take a look in the transmission , and they say they cant cause if they take the transmission apart and find nothing they wont get paid . So I get stuck with the bill of them trying to troubleshoot this noise huh. . Then he tells me I am going to have to pay a deductible if it is somthing in the transmission or t case, what deductible?? what happend to that drive terrain warranty??? anyone having any advice or knowledge of how there troubleshooting is suppose to work?? I tell you what if that noise is still there I am not paying a damn penny of the clutch. Any advice would really help me out. Sounds to me like this dealer doesnt know whats going on and this is just a line of BS . So please if anyone has and suggestions give me a shout. . Thanks sorry so long but this dealer is a pain in my a*^ right now.