hannibal, a lot of diesel newbies reading this might pick up a tip that saves them a tow fee and thousands at the hands of a ripoff mechanic..........I was lookin for a replacement head for my pickup,and there is didly on the net thats useful.....just china hate mostly.......now i know what im doin,but had to go blind on the head or pay Ford ten times the money for the same product.........also seems labor to replace a simple 4 pot head is around $3000........now that buys a lot of shootin gear.