Not sure if that was a design problem or what. I replaced mine with lifetime warranty joints from NAPA, so all it ever cost me after the first time was my time. Might have something to do with that big hunk of steel sitting under the hood
. That 7.3 sure has some weight to it. As far as parts, things are gonna wear with mileage. Brakes, shocks, suspension parts, they don't go forever. Not knowing how the previous owner took care of it, I think it's a good idea if you let a trained mechanic look at it. As noted above, I would definetly get someone who is familiar with the 7.3 diesel. i never had a n issue with mine, except the glow plug module kept burning out, but that's an easy fix and it only cost a couple of bucks. Hope you make out O.K., that is one good truck for towing. Mine never showed any signs of oil leaks, but about the time I was getting rid of it, it probably could have used some new gaskets.