Blown head gasket need help

[notahd]

We are here in the eastern panhandle of West Virginia and looking for a good Duramax mechanic to replace the head gaskets on my 2006 GMC 3500? Last trip I noticed a small cherping sound and thought it may have been a exhaust leak. After going under the truck I see a little bubbleing out of the passenger side rear head where it meets the block. Truck still runs great and all but dont want to do any more harm. notahd@aol.com