Your post is dead on. I have been battling high end turbo issues for a while. I have a relative low mileage lly (138000). I just went through and tightened all the clamps on all the pressure sides of the turbo and the truck is running awesome. I do have a question for you though. Why did the lly only get produced for a short time? It put out more HP and torque then the next model. Was it reliability or emissions? Just curious.