you will need to tear apart the front and rear end to the inner oil seals and repack everything in grease. then drain diffs and refill. then drain t-case and tranny and refill. if you sucked in any water you might want to drain the engine oil too...

iirc, there was/is not a whole lot of "mud" in spokane...whole lot of sand though...so i would not worry about it untill you get to my side of the state
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