Thanks for the replies. I am in the process of degreasing to make sure it is the pan gasket thats leaking. I agree it could be from above and running down. About five years ago the pan gasket was leaking. I simply tightened all the pan bolts ( got a quarter to half a turn on all of them) and the pan has stayed dry for the last five years. Then a few months ago it started dripping again. I degreased the pan about a week ago and by the time I got back under the truck everything was wet again so the source was impossible to determine. I need to degrease again and check it every day to see where it is getting wet first. Thanks Bill