as posted by typicalsituations "I have heard that the Blue fluid will help. I just feel like if it wasnt made for our cars, then it should go in it. I can live with my BUMP, but I think its getting worse."
Just so you know that blue fluid was made just for the Transfer-Case. It is used in the GM Transfer-Cases now "factory fill" as the old fluid was not working well and they were having troubles with broken cases. This I beleive is a synthetic fluid.