History: bought dif used. Zuk (Ken) went through it, ran for a couple years. Flooded axle with water but didn’t realize till pinion started making noise. Replaced bearings, and continued running dif. Got a little heavy on skinny pedal snow wheeling on a snow run last winter. Truck sat for 8 months while I was away on an all expense paid vacation. Got back drove for a couple weeks and noise was terrible. Pulled to swap in another dif. Here’s what I found.