sounds like a very unique system, and seems like it would be less efficient. I wonder why the hp rating is higher with it? thanks for the educating on that hmmmh, rrggh.....ehh. yeah....well I won't be too specific for fear of losing the truck to some crazy U nut.. ..But the truck is in the finger lakes area, Potter to be exact. looks like you are 2 hours or so away? well, I started this thread to ask about the engine problem. I know it is hard to say anything from a distance. I need to get in there and see what the thing is doing before I start asking you guys. The mechanic had told them it was the cam, and I see a pushrod removed, so maybe it did lose a lifter face. If this is the case, hypothetically, wonder how much a cam and lifters is ballpark? I will say I am real tickled to see so much interest in this truck, bunch of excited u fans out there my neighbor drives a u with short dump daily and he was excited too are these trucks not very common? anyway, thanks for all the posts guys