I totally agree with Stock 49. My father told me that in the 30s-40s that engine overhauls were common 35-45 thousand miles wasn’t unusual. Now it doesn’t happen much at all. When I started working on semi trucks in 1979 engines were overhauled at 500,000 miles max. That was with a set of bearings rolled in at 250k. When I retired in 2016 engines went over 1,000,000 miles with nothing but a couple of water pumps and maybe a injector or 2. Most big trucks are like cars now, by the time the engine is junk, the rest of the truck is too. Jay
