The 7.3 is one of the best diesel motors ever built. It has been 12 since they stopped putting them in pickups and the new diesel motors have passed them by as far as mpg and power. I would buy that truck in a heart beat if not wanting to buy new....I had 3 of them.... one thing you need to take a close look at is the oil pan on it. The oil pans would rust out and the engine needs to be pulled out to replace it $$$$$. There is some quick fix methods I have seen but I wouldn't want it done to any truck I owned. I own the 6.7 now but a friend of mine has....last time we talked about it anyway....405,000 on his 2002 7.3