Reading these posts reminded me to check all my fluids since I never did since getting the truck. Of course, it has been driven little since I got it but now that the restoration is finished, more driving is coming. Today we drained the transfer, transmission and both differentials. Also checked the knuckles. The only surprise was the transfer with a good amount of water in the gear lube. I have to wonder how it got there unless someone was running in deep water and it came in through the disconnected vent system. Glad we got it cleaned out!