John, you do know that when our generation uses the term " day trippin " it gives the wrong connotations to the younger generations of today !
Cooter, I don't know what spring clip you are referring too ? The transfer case ( TC ) pump rub issue has to do with the pump inside the TC rubbing against the magnesium back case half and, putting a hole in it. One must drop the TC and replace the back half. If one drops the TC before it gets a hole in it, then you could install as different after market thicker aluminum case half or, a different after market pump. You'd have to google it to really understand what I'm trying to explain, all I can say is GM knew about it for years and did nothing until 2007 or 2008.
I'd like to know more about this spring clip ?