Hi all just wanted to say it sure is easy to take a small job of replacing glo-plugs and turn it into a big job, pulling the head to get the very last glo-plug out! It is zero degrees out right now and I didn't want to tackle this without heat so took it to a pro. Actually is the best guy around, He told me half a day and he would have it fixed, no problem. At the end of the day I got a call, Bad news he said. After hearing about the glo-plugs breaking off on this forum i was kinda prepared. He told me that the very last one was swollen and would not come out. Couldn't put it back in either as the head had separated from the plug? The job went from four hours labor to well the book says 12 hours! I'll find out for sure tomorrow. He would have had it done today but the parts store he ordered the head gasket from received head bolts! not the gasket. This is going to be an expensive fix and the only spare money I had set aside was for my cats paint job. Still a lot cheaper than a new truck. will be I figure about three truck payments.