A few months ago I was looking at new trucks and didn't see anything better than what I had, but the engine was showing signs of wear, so I replaced the engine. Went to Ford and they ordered up a New (not remanufactured) long block. Much less than the cost of a new truck, no issues with someone else's problems and it came with 100K mile warranty. It cost more than a rebuild, but it's a new engine. Runs great BTW. Another thousand miles and I switch to pure synthetic oil.