My 49 1/2 ton has at least 128,580 miles on it now. When my dad bought the truck in 1974 it was showing about 97,000 miles. He remembers it turning over to 00,000, he liked the idea that was a new truck again.(HA HA) When he gave me the truck in 2005 it was showing about 22,000 miles on it. When I was trying to get it to pass air care I had the head and side cover off and it was very clean inside, also there was no ring ridge and the bores were shiny. I cleaned the tops of 2 pistons and there was no numbers on them. It is the engine that came with it in 1949( numbers matching the plate on the drivers door post).
