Weasel Diesel,

Thanks for the information. I have not seen the truck for almost a year. I was planning to have a look at it later this week. I would not have just yanked it apart without checking it though. No way I would take someone's word for something like that, too much work. If I pull it apart it is because it needed it.
I was unaware of the bulletin that GM had put out on the 4.3. It has been several years since I worked for GM. It was far enough back that we were not called Techs. I certainly appreciate you taking the time and trouble to post this information, it will give me a heads up and I will check it first thing.
I have always found this to be a pretty decent site to find information.