My rear differential fluid was changed at about 30K, 66K and 103K miles. I did the last change myself, and the outside of the differential was dry. Now after only 1,300 miles I see that both "dust seals" on the driveshaft outputs are seeping and the lower casing is damp, but not dripping when the vehicle sits. BTW it routinely sits garaged in winter storage in NC for each of the past five years. Correct Honda VTM-4 was used and it's not overfilled, so that's not the issue. I read where some Gen 1 Ridgelines have leaking dust seals with even low mileage, but now I try to determine if it's just age related or is it related to my recent fluid change. I have no reason to think the differential breather tubes or breather box are bad. With this age and mileage, I'm inclined to let it ride since the two rear CV driveshafts are still OK. I don't have a repair estimate yet on replacing the dust shields, but I assume it will approach $1,000. Suggestions are welcomed.