Did a 350mi ride with the queen yesterday and noticed a disturbing noise near the differential, today it's going crick...crick...crick...as the wheel rolls slowly....thinking somehow the diff is shot, oil clean, took sensor out and teeth look fine...check the forum and learned it might be the diff pins being dry....broke it down, cleaned and greased with honda moly 60....noise gone...Thanks to the powers that be....Mick