2003 crv picks up speed theres a noise coming from the rearend, plane sound like

have it serviced and have special additive added. they limited slip additive is worn out and needs to be repl,very common on these

possible wheel bearing. any vibration? any noise when shift forward or reverse? if so, possible U joint. review when last rear diff. service. should be done 18 to 24 months. sounds like a good time to have complete rear end service(repak bearings, rear diff. service, inspect U joints, inspect brakes). may want to have rear out put shaft looked at also(output shaft seal, bearing, and bushing).