Vikingdude
I'm Awesome
I was under the truck doing some other stuff this weekend and noticed my vent hose was split. No big deal... Run to the parts store and grab some fuel hose. Went back to put fresh hose, and low and behold, the vent nipple was basically rusty dust. It also turns out it's a press fit, not a threaded nipple. GM likely saved $0.004 on each unit by doing this Looks like I'll be taking the rear end apart to get any contamination out and to punch out the old nipple. Glad I caught it before out snowy, wet winters destroyed my diff.