Embarrassed to say, I never changed the fluid in the rear, or transmission...Thanks for bringing it to my attention...while on the subject...what fluid would you recommend?...I guess hard surfaces (blacktop/concrete) and lets say soft surfaces (dirt road) would have a different effect whether the noise is heard or not??.....When I changed the gear oil in my sons 2000 Ram a few years back I obtained an additive from the dealer, so I'm guessing this is what your making reference to......So this noise is nothing to be concerned about? I haven't heard it since.....As usual your expertise is always appreciated......
