Hum while turning to the right

I have a rear end question, I am starting to get a humming sound coming from the rear whenever I make a right turn at a corner. It sounds like the hum break system have on buses or 18 wheelers, but I turn without putting my foot on the break, is anything wearing out here that needs to be replaced?? I don´t have a limited slip diff, I have the stock traditional diff. Thanks for the help everybody.

kinda sounds like a wheel bearing.

You may be right, I´ll check them out next monday, I bought the truck used and it now has 70,000 km, the rear leaf springs are kinda low so it may have been used to tow or carry heavy loads. thanks! :uhoh:

I think it may be a spider gear starting to go on you . If it was a wheel bearing it would make the noise all the time not just when turning. Noises from the rear diff while turning usually means a spider gear.