Thanks for the help. I had head gasket problems a couple of years ago so I replaced the head gasket, used sealer on the bolt threads and torqued it per spec. The leak has been there since about that time. It has ~2000 miles on it since then and is running fine. The leak is on top of the head in an open area not around bolts. A small amount of coolant accumulates and then runs into the indentions around one of the plugs. I currently have the transmission out to have it gone through, one of the shift forks broke a couple of weeks ago. I thought that while the truck was out of commission I might work on the head leak as well but wanted to make sure I could find the
part if I needed it. Thanks again for the reply.