Well the truck is my friends. He was pretty vauge about what they did. Said that it needed grid heater gaskets. I think the wiz at dodge beat them up taking off the intake. The Mechanic said it was the drive chain. I know it is gear driven. He could tell us what he thought went wrong but he is a jacka$$ Gas car mechanic with a service manual. Wish I had more info for you. All I know is the truck runs fine now. Thanks, Greg