On Sunday, changed the oil for the second time during ownership, first was around 155k, this one around 158k. Need to do drain and fills of the differentials, but didn't have the time so I checked levels and topped off. Front was fine, oil came out when the plug was removed. Rear was low, WAY TOO LOW!, we're talking 1.3 to 1.5 quarts low! It wasn't making noise, but I need to get in there soon and pop the cover, clean and inspect the internals. No Auto-Trak II available locally at the auto parts stores, so I didn't check the transfer case, need to make a trip to a dealership parts department. I have some work to do in the near future, the to-do list keeps growing the more I get done around the house and on the vehicles. It's like I am going in reverse. Eventually I'll get caught up, I hope.