Steve, that's my opinion too. I think if they saw less than 75k they wouldn't let go, this truck was 113k. What I did on the two plugs that didn't break, got as close as I could, no extensions, and hit em. with my 3/8 air gun, walked em right out (as I sweated)!!!! If I tried to sneak em out real slow with a ratchet, you could hear and feel the porcelain breaking.