Thanks man, seriously that makes me feel a lot better. What do I really expect after 276K miles? I can almost feel myself getting more sensitive to weird vibrations/sounds ect. the more things I find need fixed on her. Just upsetting when you thought you finally found the truck you've wanted since I was 13, and it turns out its sort of limping.I ran into the same thing. Just take your time and knock out the list one by one. Oil cooler hoses, harmonic balancer, glow plugs, cooling tower flush, etc. When trucks have been neglected or the P.O. didn't know any better, its a lot to do up front. The reality is, the truck will be awesome and reliable after a month or two of bringing it "up to snuff".