Had a truck come into work, customer's complaint? Transmission inoperative. Wouldn't start... long story short, discovered it through a rod through the oil pan and was siezed in place... So here it is... and here is the offending party: BY the way, that little "rock"... is what is left of the #1 cylinder piston... Oh and back behind my plug socket and next to the plug boot plyers is what is the shards from the oil pan. I removed the rod and piston chunk before I pulled the engine. Just smacked the oil pan with a huge prybar and pulled it through the oil pan. You can't tell by the picture but it is twisted as well as bent, haha. As far as I can tell, it popped a headgasket, and hydrolocked, through the rod through the oil pan and crumbled up the piston at the sametime. I guess even Dex-Cool doesn't compress, haha. Now here is what I don't get, wouldn't a person notice this when driving the truck? He said he was just driving along and it stopped... couldn't get it to restart. Since he had one issue previouslly with the trans(range selector issue that Allison's have) he figured it was the trans, I guess... Whatever, I'm 8.5 hours into the job that is only paying 16.8 to do. I work in a Ford/Mitsubishi dealership and am puting an 8.1L in a 02 GMC 2500HD. The guy bought it from us used. Oh and his grandfather is some former Eagles player, so our company feels some insane need to cater to him. He is going to be pissed when the bill comes down. The longblock they got me didn't include valve covers or an oil pan, so I had to order a new oil pan, plugs, oil cooler(voids the warranty of the engine if not replaced), and one or two other things.